20324392002 has 12 divisors (see below), whose sum is σ = 44036182710. Its totient is φ = 6774797328.

The previous prime is 20324392001. The next prime is 20324392027. The reversal of 20324392002 is 20029342302.

20324392002 is a `hidden beast` number, since 20 + 3 + 2 + 439 + 200 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 18938989161 + 1385402841 = 137619^2 + 37221^2 .

It is not an unprimeable number, because it can be changed into a prime (20324392001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 564566427 + ... + 564566462.

Almost surely, 2^20324392002 is an apocalyptic number.

20324392002 is an abundant number, since it is smaller than the sum of its proper divisors (23711790708).

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

20324392002 is a wasteful number, since it uses less digits than its factorization.

20324392002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129132897 (or 1129132894 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The spelling of 20324392002 in words is "twenty billion, three hundred twenty-four million, three hundred ninety-two thousand, two".