22613290 has 32 divisors (see below), whose sum is σ = 47781504. Its totient is φ = 7542720.

The previous prime is 22613203. The next prime is 22613299. The reversal of 22613290 is 9231622.

It is a happy number.

It is a super-2 number, since 2×22613290² = 1022721769248200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22613299) by changing a digit.

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, 1776 + ... + 6955.

It is an arithmetic number, because the mean of its divisors is an integer number (1493172).

Almost surely, 2^22613290 is an apocalyptic number.

22613290 is an abundant number, since it is smaller than the sum of its proper divisors (25168214).

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

22613290 is a wasteful number, since it uses less digits than its factorization.

22613290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8782.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 22613290 is about 4755.3433104246. The cubic root of 22613290 is about 282.7838377289.

The spelling of 22613290 in words is "twenty-two million, six hundred thirteen thousand, two hundred ninety".