28800074 has 16 divisors (see below), whose sum is σ = 47320200. Its totient is φ = 13085184.

The previous prime is 28800073. The next prime is 28800077. The reversal of 28800074 is 47000882.

It can be written as a sum of positive squares in 4 ways, for example, as 26677225 + 2122849 = 5165^2 + 1457^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (28800073) 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, 13619 + ... + 15590.

Almost surely, 2^28800074 is an apocalyptic number.

28800074 is a deficient number, since it is larger than the sum of its proper divisors (18520126).

28800074 is a wasteful number, since it uses less digits than its factorization.

28800074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29257.

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 28800074 is about 5366.5700405380. The cubic root of 28800074 is about 306.5240354891.

The spelling of 28800074 in words is "twenty-eight million, eight hundred thousand, seventy-four".