28250874 has 24 divisors (see below), whose sum is σ = 61988160. Its totient is φ = 9297288.

The previous prime is 28250867. The next prime is 28250879. The reversal of 28250874 is 47805282.

28250874 = 457² + 458² + ... + 564².

It is a happy number.

28250874 is a `hidden beast` number, since 2 + 82 + 508 + 74 = 666.

It is a super-2 number, since 2×28250874² = 1596223763527752, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28250879) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8512 + ... + 11355.

It is an arithmetic number, because the mean of its divisors is an integer number (2582840).

Almost surely, 2^28250874 is an apocalyptic number.

28250874 is an abundant number, since it is smaller than the sum of its proper divisors (33737286).

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

28250874 is a wasteful number, since it uses less digits than its factorization.

28250874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19954 (or 19951 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 28250874 is about 5315.1551247353. The cubic root of 28250874 is about 304.5631082444.

The spelling of 28250874 in words is "twenty-eight million, two hundred fifty thousand, eight hundred seventy-four".