22640796 has 36 divisors (see below), whose sum is σ = 59353112. Its totient is φ = 7546608.

The previous prime is 22640791. The next prime is 22640801. The reversal of 22640796 is 69704622.

It is a happy number.

22640796 is a `hidden beast` number, since 2 + 2 + 640 + 7 + 9 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (22640791) and next prime (22640801).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 22640796.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22640791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10675 + ... + 12618.

Almost surely, 2^22640796 is an apocalyptic number.

It is an amenable number.

22640796 is an abundant number, since it is smaller than the sum of its proper divisors (36712316).

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

22640796 is a wasteful number, since it uses less digits than its factorization.

22640796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23312 (or 23298 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 22640796 is about 4758.2345465519. The cubic root of 22640796 is about 282.8984473330.

It can be divided in two parts, 22640 and 796, that added together give a triangular number (23436 = T₂₁₆).

The spelling of 22640796 in words is "twenty-two million, six hundred forty thousand, seven hundred ninety-six".