22364290 has 32 divisors (see below), whose sum is σ = 43981056. Its totient is φ = 8137920.

The previous prime is 22364281. The next prime is 22364297. The reversal of 22364290 is 9246322.

It is a super-2 number, since 2×22364290² = 1000322934408200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22364297) 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, 8019 + ... + 10441.

It is an arithmetic number, because the mean of its divisors is an integer number (1374408).

Almost surely, 2^22364290 is an apocalyptic number.

22364290 is a deficient number, since it is larger than the sum of its proper divisors (21616766).

22364290 is a wasteful number, since it uses less digits than its factorization.

22364290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2514.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 22364290 is about 4729.0897644261. The cubic root of 22364290 is about 281.7420725638.

The spelling of 22364290 in words is "twenty-two million, three hundred sixty-four thousand, two hundred ninety".