20622886 has 16 divisors (see below), whose sum is σ = 32749200. Its totient is φ = 9723168.

The previous prime is 20622869. The next prime is 20622911. The reversal of 20622886 is 68822602.

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 7 ways as a sum of consecutive naturals, for example, 1641 + ... + 6628.

It is an arithmetic number, because the mean of its divisors is an integer number (2046825).

Almost surely, 2^20622886 is an apocalyptic number.

20622886 is a deficient number, since it is larger than the sum of its proper divisors (12126314).

20622886 is a wasteful number, since it uses less digits than its factorization.

20622886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8343.

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 20622886 is about 4541.2427814421. The cubic root of 20622886 is about 274.2309577006.

The spelling of 20622886 in words is "twenty million, six hundred twenty-two thousand, eight hundred eighty-six".