28304384152 has 32 divisors (see below), whose sum is σ = 58987705680. Its totient is φ = 12622879360.

The previous prime is 28304384149. The next prime is 28304384197. The reversal of 28304384152 is 25148340382.

It is a super-2 number, since 2×28304384152² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3029683 + ... + 3039010.

Almost surely, 2^28304384152 is an apocalyptic number.

28304384152 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28304384152 is an abundant number, since it is smaller than the sum of its proper divisors (30683321528).

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

28304384152 is a wasteful number, since it uses less digits than its factorization.

28304384152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6068763 (or 6068759 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 40.

The spelling of 28304384152 in words is "twenty-eight billion, three hundred four million, three hundred eighty-four thousand, one hundred fifty-two".