28344974 has 32 divisors (see below), whose sum is σ = 50552832. Its totient is φ = 11664000.

The previous prime is 28344961. The next prime is 28344989. The reversal of 28344974 is 47944382.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104459 + ... + 104729.

It is an arithmetic number, because the mean of its divisors is an integer number (1579776).

Almost surely, 2^28344974 is an apocalyptic number.

28344974 is a deficient number, since it is larger than the sum of its proper divisors (22207858).

28344974 is a wasteful number, since it uses less digits than its factorization.

28344974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552.

The product of its digits is 193536, while the sum is 41.

The square root of 28344974 is about 5323.9998121713. Note that the first 3 decimals coincide. The cubic root of 28344974 is about 304.9008869034.

The spelling of 28344974 in words is "twenty-eight million, three hundred forty-four thousand, nine hundred seventy-four".