20001532304 has 20 divisors (see below), whose sum is σ = 41733966876. Its totient is φ = 9231476352.

The previous prime is 20001532301. The next prime is 20001532321. The reversal of 20001532304 is 40323510002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1273062400 + 18728469904 = 35680^2 + 136852^2 .

It is a super-2 number, since 2×20001532304² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20001532301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48080399 + ... + 48080814.

Almost surely, 2^20001532304 is an apocalyptic number.

It is an amenable number.

20001532304 is an abundant number, since it is smaller than the sum of its proper divisors (21732434572).

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

20001532304 is a wasteful number, since it uses less digits than its factorization.

20001532304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96161234 (or 96161228 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The spelling of 20001532304 in words is "twenty billion, one million, five hundred thirty-two thousand, three hundred four".