28409674 has 16 divisors (see below), whose sum is σ = 45036000. Its totient is φ = 13403664.

The previous prime is 28409659. The next prime is 28409687. The reversal of 28409674 is 47690482.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9177 + ... + 11875.

It is an arithmetic number, because the mean of its divisors is an integer number (2814750).

Almost surely, 2^28409674 is an apocalyptic number.

28409674 is a deficient number, since it is larger than the sum of its proper divisors (16626326).

28409674 is a wasteful number, since it uses less digits than its factorization.

28409674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2997.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 28409674 is about 5330.0726073854. The cubic root of 28409674 is about 305.1326986849.

The spelling of 28409674 in words is "twenty-eight million, four hundred nine thousand, six hundred seventy-four".