28453904 has 20 divisors (see below), whose sum is σ = 55829760. Its totient is φ = 14046240.

The previous prime is 28453861. The next prime is 28453927. The reversal of 28453904 is 40935482.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

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, 9992 + ... + 12519.

It is an arithmetic number, because the mean of its divisors is an integer number (2791488).

Almost surely, 2^28453904 is an apocalyptic number.

It is an amenable number.

28453904 is a deficient number, since it is larger than the sum of its proper divisors (27375856).

28453904 is a wasteful number, since it uses less digits than its factorization.

28453904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22598 (or 22592 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 28453904 is about 5334.2200929470. The cubic root of 28453904 is about 305.2909666220.

The spelling of 28453904 in words is "twenty-eight million, four hundred fifty-three thousand, nine hundred four".