22487250 has 32 divisors (see below), whose sum is σ = 56130048. Its totient is φ = 5996400.

The previous prime is 22487249. The next prime is 22487263. The reversal of 22487250 is 5278422.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14242 + ... + 15741.

It is an arithmetic number, because the mean of its divisors is an integer number (1754064).

Almost surely, 2^22487250 is an apocalyptic number.

22487250 is an abundant number, since it is smaller than the sum of its proper divisors (33642798).

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

22487250 is a wasteful number, since it uses less digits than its factorization.

22487250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30003 (or 29993 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 22487250 is about 4742.0723317976. The cubic root of 22487250 is about 282.2574732136.

The spelling of 22487250 in words is "twenty-two million, four hundred eighty-seven thousand, two hundred fifty".