28240940824 has 16 divisors (see below), whose sum is σ = 53120943720. Its totient is φ = 14075355840.

The previous prime is 28240940813. The next prime is 28240940869. The reversal of 28240940824 is 42804904282.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5636662 + ... + 5641669.

Almost surely, 2^28240940824 is an apocalyptic number.

It is an amenable number.

28240940824 is a deficient number, since it is larger than the sum of its proper divisors (24880002896).

28240940824 is a wasteful number, since it uses less digits than its factorization.

28240940824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11278650 (or 11278646 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 43.

The spelling of 28240940824 in words is "twenty-eight billion, two hundred forty million, nine hundred forty thousand, eight hundred twenty-four".