20622996 has 36 divisors (see below), whose sum is σ = 54399072. Its totient is φ = 6575184.

The previous prime is 20622983. The next prime is 20623003. The reversal of 20622996 is 69922602.

20622996 is a `hidden beast` number, since 20 + 622 + 9 + 9 + 6 = 666.

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 20622996.

It is a congruent number.

It is an unprimeable number.

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, 11626 + ... + 13281.

Almost surely, 2^20622996 is an apocalyptic number.

It is an amenable number.

20622996 is an abundant number, since it is smaller than the sum of its proper divisors (33776076).

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

20622996 is a wasteful number, since it uses less digits than its factorization.

20622996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24940 (or 24935 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 20622996 is about 4541.2548926481. The cubic root of 20622996 is about 274.2314452715.

The spelling of 20622996 in words is "twenty million, six hundred twenty-two thousand, nine hundred ninety-six".