28890924424 has 32 divisors (see below), whose sum is σ = 56683952640. Its totient is φ = 13787971200.

The previous prime is 28890924407. The next prime is 28890924443. The reversal of 28890924424 is 42442909882.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 779812 + ... + 816019.

It is an arithmetic number, because the mean of its divisors is an integer number (1771373520).

Almost surely, 2^28890924424 is an apocalyptic number.

It is an amenable number.

28890924424 is a deficient number, since it is larger than the sum of its proper divisors (27793028216).

28890924424 is a wasteful number, since it uses less digits than its factorization.

28890924424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1595941 (or 1595937 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 52.

The spelling of 28890924424 in words is "twenty-eight billion, eight hundred ninety million, nine hundred twenty-four thousand, four hundred twenty-four".