204242040432 has 90 divisors (see below), whose sum is σ = 593548578168. Its totient is φ = 68080645152.

The previous prime is 204242040413. The next prime is 204242040437. The reversal of 204242040432 is 234040242402.

204242040432 is a `hidden beast` number, since 2 + 0 + 4 + 24 + 204 + 0 + 432 = 666.

It is a super-2 number, since 2×204242040432² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 204242040396 and 204242040405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204242040437) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 867828 + ... + 1077779.

Almost surely, 2^204242040432 is an apocalyptic number.

It is an amenable number.

204242040432 is an abundant number, since it is smaller than the sum of its proper divisors (389306537736).

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

204242040432 is an frugal number, since it uses more digits than its factorization.

204242040432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1945639 (or 1945612 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 27.

Adding to 204242040432 its reverse (234040242402), we get a palindrome (438282282834).

The spelling of 204242040432 in words is "two hundred four billion, two hundred forty-two million, forty thousand, four hundred thirty-two".