28374574 has 4 divisors (see below), whose sum is σ = 42561864. Its totient is φ = 14187286.

The previous prime is 28374569. The next prime is 28374601. The reversal of 28374574 is 47547382.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 7093642 + ... + 7093645.

It is an arithmetic number, because the mean of its divisors is an integer number (10640466).

Almost surely, 2^28374574 is an apocalyptic number.

28374574 is a deficient number, since it is larger than the sum of its proper divisors (14187290).

28374574 is a wasteful number, since it uses less digits than its factorization.

28374574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14187289.

The product of its digits is 188160, while the sum is 40.

The square root of 28374574 is about 5326.7789516743. The cubic root of 28374574 is about 305.0069836258.

The spelling of 28374574 in words is "twenty-eight million, three hundred seventy-four thousand, five hundred seventy-four".