28888408 has 32 divisors (see below), whose sum is σ = 56376000. Its totient is φ = 13861120.

The previous prime is 28888397. The next prime is 28888427. The reversal of 28888408 is 80488882.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55188 + ... + 55708.

It is an arithmetic number, because the mean of its divisors is an integer number (1761750).

Almost surely, 2^28888408 is an apocalyptic number.

It is an amenable number.

28888408 is a deficient number, since it is larger than the sum of its proper divisors (27487592).

28888408 is a wasteful number, since it uses less digits than its factorization.

28888408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795 (or 791 counting only the distinct ones).

The product of its (nonzero) digits is 262144, while the sum is 46.

The square root of 28888408 is about 5374.7937634853. The cubic root of 28888408 is about 306.8371001791.

The spelling of 28888408 in words is "twenty-eight million, eight hundred eighty-eight thousand, four hundred eight".