20572430004 has 48 divisors (see below), whose sum is σ = 60955350400. Its totient is φ = 5877836928.

The previous prime is 20572429993. The next prime is 20572430027. The reversal of 20572430004 is 40003427502.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20572430004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13605349 + ... + 13606860.

Almost surely, 2^20572430004 is an apocalyptic number.

It is an amenable number.

20572430004 is an abundant number, since it is smaller than the sum of its proper divisors (40382920396).

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

20572430004 is a wasteful number, since it uses less digits than its factorization.

20572430004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27212229 (or 27212221 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

Adding to 20572430004 its reverse (40003427502), we get a palindrome (60575857506).

The spelling of 20572430004 in words is "twenty billion, five hundred seventy-two million, four hundred thirty thousand, four".