22663690 has 16 divisors (see below), whose sum is σ = 46622592. Its totient is φ = 7770384.

The previous prime is 22663687. The next prime is 22663691. The reversal of 22663690 is 9636622.

It is a super-2 number, since 2×22663690² = 1027285688832200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22663691) 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 7 ways as a sum of consecutive naturals, for example, 161814 + ... + 161953.

It is an arithmetic number, because the mean of its divisors is an integer number (2913912).

Almost surely, 2^22663690 is an apocalyptic number.

22663690 is an abundant number, since it is smaller than the sum of its proper divisors (23958902).

22663690 is a wasteful number, since it uses less digits than its factorization.

22663690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323781.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 22663690 is about 4760.6396629025. The cubic root of 22663690 is about 282.9937692943.

The spelling of 22663690 in words is "twenty-two million, six hundred sixty-three thousand, six hundred ninety".