22291952 has 40 divisors (see below), whose sum is σ = 45198000. Its totient is φ = 10637312.

The previous prime is 22291949. The next prime is 22291961. The reversal of 22291952 is 25919222.

It is a super-2 number, since 2×22291952² = 993862247940608, which contains 22 as substring.

It is a congruent number.

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, 49424 + ... + 49872.

It is an arithmetic number, because the mean of its divisors is an integer number (1129950).

Almost surely, 2^22291952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22291952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22599000).

22291952 is an abundant number, since it is smaller than the sum of its proper divisors (22906048).

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

22291952 is a wasteful number, since it uses less digits than its factorization.

22291952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593 (or 587 counting only the distinct ones).

The product of its digits is 6480, while the sum is 32.

The square root of 22291952 is about 4721.4353749681. The cubic root of 22291952 is about 281.4379765909.

The spelling of 22291952 in words is "twenty-two million, two hundred ninety-one thousand, nine hundred fifty-two".