28502072 has 16 divisors (see below), whose sum is σ = 54043200. Its totient is φ = 14090560.

The previous prime is 28502053. The next prime is 28502101. The reversal of 28502072 is 27020582.

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, 19304 + ... + 20727.

It is an arithmetic number, because the mean of its divisors is an integer number (3377700).

Almost surely, 2^28502072 is an apocalyptic number.

It is an amenable number.

28502072 is a deficient number, since it is larger than the sum of its proper divisors (25541128).

28502072 is a wasteful number, since it uses less digits than its factorization.

28502072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40126 (or 40122 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 28502072 is about 5338.7331830688. The cubic root of 28502072 is about 305.4631394244.

The spelling of 28502072 in words is "twenty-eight million, five hundred two thousand, seventy-two".