22590256 has 40 divisors (see below), whose sum is σ = 47868464. Its totient is φ = 10264320.

The previous prime is 22590223. The next prime is 22590277. The reversal of 22590256 is 65209522.

It is a super-2 number, since 2×22590256² = 1020639332291072, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 13126 + ... + 14746.

Almost surely, 2^22590256 is an apocalyptic number.

22590256 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22590256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23934232).

22590256 is an abundant number, since it is smaller than the sum of its proper divisors (25278208).

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

22590256 is a wasteful number, since it uses less digits than its factorization.

22590256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1709 (or 1703 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 22590256 is about 4752.9207862114. The cubic root of 22590256 is about 282.6877901425.

Adding to 22590256 its reverse (65209522), we get a palindrome (87799778).

The spelling of 22590256 in words is "twenty-two million, five hundred ninety thousand, two hundred fifty-six".