28914272 has 24 divisors (see below), whose sum is σ = 57153600. Its totient is φ = 14399104.

The previous prime is 28914269. The next prime is 28914283. The reversal of 28914272 is 27241982.

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, 6929 + ... + 10287.

It is an arithmetic number, because the mean of its divisors is an integer number (2381400).

Almost surely, 2^28914272 is an apocalyptic number.

It is an amenable number.

28914272 is a deficient number, since it is larger than the sum of its proper divisors (28239328).

28914272 is a wasteful number, since it uses less digits than its factorization.

28914272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3638 (or 3630 counting only the distinct ones).

The product of its digits is 16128, while the sum is 35.

The square root of 28914272 is about 5377.1992709960. The cubic root of 28914272 is about 306.9286440207.

The spelling of 28914272 in words is "twenty-eight million, nine hundred fourteen thousand, two hundred seventy-two".