28042864 has 10 divisors (see below), whose sum is σ = 54333080. Its totient is φ = 14021424.

The previous prime is 28042849. The next prime is 28042907. The reversal of 28042864 is 46824082.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 876324 + ... + 876355.

It is an arithmetic number, because the mean of its divisors is an integer number (5433308).

Almost surely, 2^28042864 is an apocalyptic number.

It is an amenable number.

28042864 is a deficient number, since it is larger than the sum of its proper divisors (26290216).

28042864 is a wasteful number, since it uses less digits than its factorization.

28042864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1752687 (or 1752681 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 28042864 is about 5295.5513405121. The cubic root of 28042864 is about 303.8137709818.

The spelling of 28042864 in words is "twenty-eight million, forty-two thousand, eight hundred sixty-four".