28774374 has 16 divisors (see below), whose sum is σ = 58952880. Its totient is φ = 9357440.

The previous prime is 28774373. The next prime is 28774381. The reversal of 28774374 is 47347782.

It is a Smith number, since the sum of its digits (42) 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 not an unprimeable number, because it can be changed into a prime (28774373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58239 + ... + 58730.

It is an arithmetic number, because the mean of its divisors is an integer number (3684555).

Almost surely, 2^28774374 is an apocalyptic number.

28774374 is an abundant number, since it is smaller than the sum of its proper divisors (30178506).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28774374 is a wasteful number, since it uses less digits than its factorization.

28774374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117015.

The product of its digits is 263424, while the sum is 42.

The square root of 28774374 is about 5364.1750530720. The cubic root of 28774374 is about 306.4328318796.

The spelling of 28774374 in words is "twenty-eight million, seven hundred seventy-four thousand, three hundred seventy-four".