28371472 has 20 divisors (see below), whose sum is σ = 55053520. Its totient is φ = 14164128.

The previous prime is 28371461. The next prime is 28371493. The reversal of 28371472 is 27417382.

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, 17179 + ... + 18757.

It is an arithmetic number, because the mean of its divisors is an integer number (2752676).

Almost surely, 2^28371472 is an apocalyptic number.

It is an amenable number.

28371472 is a deficient number, since it is larger than the sum of its proper divisors (26682048).

28371472 is a wasteful number, since it uses less digits than its factorization.

28371472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2710 (or 2704 counting only the distinct ones).

The product of its digits is 18816, while the sum is 34.

The square root of 28371472 is about 5326.4877733831. The cubic root of 28371472 is about 304.9958684382.

The spelling of 28371472 in words is "twenty-eight million, three hundred seventy-one thousand, four hundred seventy-two".