20004405232 has 30 divisors (see below), whose sum is σ = 45086461008. Its totient is φ = 8573316192.

The previous prime is 20004405229. The next prime is 20004405241. The reversal of 20004405232 is 23250440002.

It is a congruent number.

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, 12757128 + ... + 12758695.

Almost surely, 2^20004405232 is an apocalyptic number.

It is an amenable number.

20004405232 is an abundant number, since it is smaller than the sum of its proper divisors (25082055776).

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

20004405232 is a wasteful number, since it uses less digits than its factorization.

20004405232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25515845 (or 25515832 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

Adding to 20004405232 its reverse (23250440002), we get a palindrome (43254845234).

The spelling of 20004405232 in words is "twenty billion, four million, four hundred five thousand, two hundred thirty-two".