28815352 has 16 divisors (see below), whose sum is σ = 54637200. Its totient is φ = 14245440.

The previous prime is 28815313. The next prime is 28815373. The reversal of 28815352 is 25351882.

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, 19524 + ... + 20947.

It is an arithmetic number, because the mean of its divisors is an integer number (3414825).

Almost surely, 2^28815352 is an apocalyptic number.

It is an amenable number.

28815352 is a deficient number, since it is larger than the sum of its proper divisors (25821848).

28815352 is a wasteful number, since it uses less digits than its factorization.

28815352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40566 (or 40562 counting only the distinct ones).

The product of its digits is 19200, while the sum is 34.

The square root of 28815352 is about 5367.9932935875. The cubic root of 28815352 is about 306.5782280161.

The spelling of 28815352 in words is "twenty-eight million, eight hundred fifteen thousand, three hundred fifty-two".