28413912 has 16 divisors (see below), whose sum is σ = 71034840. Its totient is φ = 9471296.

The previous prime is 28413899. The next prime is 28413929. The reversal of 28413912 is 21931482.

It is a self number, because there is not a number n which added to its sum of digits gives 28413912.

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, 591933 + ... + 591980.

Almost surely, 2^28413912 is an apocalyptic number.

It is an amenable number.

28413912 is an abundant number, since it is smaller than the sum of its proper divisors (42620928).

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

28413912 is a wasteful number, since it uses less digits than its factorization.

28413912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183922 (or 1183918 counting only the distinct ones).

The product of its digits is 3456, while the sum is 30.

The square root of 28413912 is about 5330.4701481201. The cubic root of 28413912 is about 305.1478706070.

It can be divided in two parts, 284 and 13912, that added together give a triangular number (14196 = T₁₆₈).

The spelling of 28413912 in words is "twenty-eight million, four hundred thirteen thousand, nine hundred twelve".