20407652224 has 32 divisors (see below), whose sum is σ = 41145720840. Its totient is φ = 10080883200.

The previous prime is 20407652201. The next prime is 20407652231. The reversal of 20407652224 is 42225670402.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 20407652224.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 949827 + ... + 971074.

Almost surely, 2^20407652224 is an apocalyptic number.

It is an amenable number.

20407652224 is an abundant number, since it is smaller than the sum of its proper divisors (20738068616).

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

20407652224 is an equidigital number, since it uses as much as digits as its factorization.

20407652224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1920998 (or 1920986 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 34.

The spelling of 20407652224 in words is "twenty billion, four hundred seven million, six hundred fifty-two thousand, two hundred twenty-four".