20420524024 has 32 divisors (see below), whose sum is σ = 38670152400. Its totient is φ = 10108949760.

The previous prime is 20420523989. The next prime is 20420524081. The reversal of 20420524024 is 42042502402.

It is a super-2 number, since 2×20420524024² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20420524024.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324007 + ... + 381865.

Almost surely, 2^20420524024 is an apocalyptic number.

It is an amenable number.

20420524024 is a deficient number, since it is larger than the sum of its proper divisors (18249628376).

20420524024 is a wasteful number, since it uses less digits than its factorization.

20420524024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58303 (or 58299 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 25.

The spelling of 20420524024 in words is "twenty billion, four hundred twenty million, five hundred twenty-four thousand, twenty-four".