42203203400 has 24 divisors (see below), whose sum is σ = 98122448370. Its totient is φ = 16881281280.

The previous prime is 42203203397. The next prime is 42203203451. The reversal of 42203203400 is 430230224.

It can be written as a sum of positive squares in 3 ways, for example, as 31137425764 + 11065777636 = 176458^2 + 105194^2 .

It is a super-2 number, since 2×42203203400² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 105507809 + ... + 105508208.

Almost surely, 2^42203203400 is an apocalyptic number.

42203203400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42203203400 is an abundant number, since it is smaller than the sum of its proper divisors (55919244970).

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

42203203400 is a wasteful number, since it uses less digits than its factorization.

42203203400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211016033 (or 211016024 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 42203203400 its reverse (430230224), we get a palindrome (42633433624).

The spelling of 42203203400 in words is "forty-two billion, two hundred three million, two hundred three thousand, four hundred".