28574384 has 20 divisors (see below), whose sum is σ = 55517280. Its totient is φ = 14247360.

The previous prime is 28574383. The next prime is 28574393. The reversal of 28574384 is 48347582.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (28574383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3929 + ... + 8519.

It is an arithmetic number, because the mean of its divisors is an integer number (2775864).

Almost surely, 2^28574384 is an apocalyptic number.

It is an amenable number.

28574384 is a deficient number, since it is larger than the sum of its proper divisors (26942896).

28574384 is a wasteful number, since it uses less digits than its factorization.

28574384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4988 (or 4982 counting only the distinct ones).

The product of its digits is 215040, while the sum is 41.

The square root of 28574384 is about 5345.5012861284. The cubic root of 28574384 is about 305.7212492747.

The spelling of 28574384 in words is "twenty-eight million, five hundred seventy-four thousand, three hundred eighty-four".