40203400 has 48 divisors (see below), whose sum is σ = 94078800. Its totient is φ = 15977280.

The previous prime is 40203391. The next prime is 40203403. The reversal of 40203400 is 430204.

It is not an unprimeable number, because it can be changed into a prime (40203403) 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 11 ways as a sum of consecutive naturals, for example, 35239 + ... + 36361.

It is an arithmetic number, because the mean of its divisors is an integer number (1959975).

Almost surely, 2^40203400 is an apocalyptic number.

40203400 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 40203400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47039400).

40203400 is an abundant number, since it is smaller than the sum of its proper divisors (53875400).

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

40203400 is a wasteful number, since it uses less digits than its factorization.

40203400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318 (or 1309 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 40203400 is about 6340.6151121165. The cubic root of 40203400 is about 342.5738913869.

Adding to 40203400 its reverse (430204), we get a palindrome (40633604).

The spelling of 40203400 in words is "forty million, two hundred three thousand, four hundred".