42203400 has 96 divisors (see below), whose sum is σ = 135110400. Its totient is φ = 10886400.

The previous prime is 42203393. The next prime is 42203407. The reversal of 42203400 is 430224.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42203393) and next prime (42203407).

It is a super-2 number, since 2×42203400² = 3562253943120000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 42203400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42203407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17466 + ... + 19734.

It is an arithmetic number, because the mean of its divisors is an integer number (1407400).

Almost surely, 2^42203400 is an apocalyptic number.

42203400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42203400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67555200).

42203400 is an abundant number, since it is smaller than the sum of its proper divisors (92907000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42203400 is a wasteful number, since it uses less digits than its factorization.

42203400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2319 (or 2310 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 42203400 is about 6496.4143956493. The cubic root of 42203400 is about 348.1628911093.

Adding to 42203400 its reverse (430224), we get a palindrome (42633624).

The spelling of 42203400 in words is "forty-two million, two hundred three thousand, four hundred".