22640022406 has 16 divisors (see below), whose sum is σ = 34227012816. Its totient is φ = 11231110656.

The previous prime is 22640022397. The next prime is 22640022437. The reversal of 22640022406 is 60422004622.

It is a super-2 number, since 2×22640022406² (a number of 22 digits) contains 22 as substring.

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, 489430 + ... + 533686.

It is an arithmetic number, because the mean of its divisors is an integer number (2139188301).

Almost surely, 2^22640022406 is an apocalyptic number.

22640022406 is a deficient number, since it is larger than the sum of its proper divisors (11586990410).

22640022406 is a wasteful number, since it uses less digits than its factorization.

22640022406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46263.

The product of its (nonzero) digits is 9216, while the sum is 28.

The spelling of 22640022406 in words is "twenty-two billion, six hundred forty million, twenty-two thousand, four hundred six".