22623620 has 12 divisors (see below), whose sum is σ = 47509644. Its totient is φ = 9049440.

The previous prime is 22623611. The next prime is 22623637. The reversal of 22623620 is 2632622.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8844676 + 13778944 = 2974^2 + 3712^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

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 3 ways as a sum of consecutive naturals, for example, 565571 + ... + 565610.

It is an arithmetic number, because the mean of its divisors is an integer number (3959137).

Almost surely, 2^22623620 is an apocalyptic number.

22623620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22623620 is an abundant number, since it is smaller than the sum of its proper divisors (24886024).

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

22623620 is a wasteful number, since it uses less digits than its factorization.

22623620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131190 (or 1131188 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 22623620 is about 4756.4293330186. The cubic root of 22623620 is about 282.8268907647.

The spelling of 22623620 in words is "twenty-two million, six hundred twenty-three thousand, six hundred twenty".