28418672 has 20 divisors (see below), whose sum is σ = 55631856. Its totient is φ = 14062080.

The previous prime is 28418669. The next prime is 28418693. The reversal of 28418672 is 27681482.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7604 + ... + 10707.

Almost surely, 2^28418672 is an apocalyptic number.

It is an amenable number.

28418672 is a deficient number, since it is larger than the sum of its proper divisors (27213184).

28418672 is a wasteful number, since it uses less digits than its factorization.

28418672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18416 (or 18410 counting only the distinct ones).

The product of its digits is 43008, while the sum is 38.

The square root of 28418672 is about 5330.9166191191. The cubic root of 28418672 is about 305.1649094758.

The spelling of 28418672 in words is "twenty-eight million, four hundred eighteen thousand, six hundred seventy-two".