22640622 has 16 divisors (see below), whose sum is σ = 45919872. Its totient is φ = 7440440.

The previous prime is 22640603. The next prime is 22640641. The reversal of 22640622 is 22604622.

It is an interprime number because it is at equal distance from previous prime (22640603) and next prime (22640641).

It is a junction number, because it is equal to n+sod(n) for n = 22640592 and 22640601.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26148 + ... + 26999.

It is an arithmetic number, because the mean of its divisors is an integer number (2869992).

Almost surely, 2^22640622 is an apocalyptic number.

22640622 is an abundant number, since it is smaller than the sum of its proper divisors (23279250).

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

22640622 is a wasteful number, since it uses less digits than its factorization.

22640622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53223.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 22640622 is about 4758.2162624244. The cubic root of 22640622 is about 282.8977226168.

The spelling of 22640622 in words is "twenty-two million, six hundred forty thousand, six hundred twenty-two".