20928622 has 32 divisors (see below), whose sum is σ = 37185120. Its totient is φ = 8760960.

The previous prime is 20928541. The next prime is 20928629. The reversal of 20928622 is 22682902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20928629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48118 + ... + 48550.

It is an arithmetic number, because the mean of its divisors is an integer number (1162035).

Almost surely, 2^20928622 is an apocalyptic number.

20928622 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20928622 is a deficient number, since it is larger than the sum of its proper divisors (16256498).

20928622 is a wasteful number, since it uses less digits than its factorization.

20928622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485 (or 459 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 20928622 is about 4574.7810876587. The cubic root of 20928622 is about 275.5794810878.

The spelling of 20928622 in words is "twenty million, nine hundred twenty-eight thousand, six hundred twenty-two".