22365690 has 32 divisors (see below), whose sum is σ = 54362880. Its totient is φ = 5888064.

The previous prime is 22365689. The next prime is 22365697. The reversal of 22365690 is 9656322.

It is a super-2 number, since 2×22365690² = 1000448178352200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22365697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2349 + ... + 7088.

It is an arithmetic number, because the mean of its divisors is an integer number (1698840).

Almost surely, 2^22365690 is an apocalyptic number.

22365690 is an abundant number, since it is smaller than the sum of its proper divisors (31997190).

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

22365690 is a wasteful number, since it uses less digits than its factorization.

22365690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9526.

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 22365690 is about 4729.2377821378. The cubic root of 22365690 is about 281.7479514399.

The spelling of 22365690 in words is "twenty-two million, three hundred sixty-five thousand, six hundred ninety".