22492590 has 32 divisors (see below), whose sum is σ = 54107136. Its totient is φ = 5984160.

The previous prime is 22492583. The next prime is 22492601. The reversal of 22492590 is 9529422.

It is a super-4 number, since 4×22492590⁴ (a number of 31 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24235 + ... + 25145.

It is an arithmetic number, because the mean of its divisors is an integer number (1690848).

Almost surely, 2^22492590 is an apocalyptic number.

22492590 is an abundant number, since it is smaller than the sum of its proper divisors (31614546).

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

22492590 is a wasteful number, since it uses less digits than its factorization.

22492590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1744.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 22492590 is about 4742.6353433508. The cubic root of 22492590 is about 282.2798138083.

The spelling of 22492590 in words is "twenty-two million, four hundred ninety-two thousand, five hundred ninety".