20922160 has 40 divisors (see below), whose sum is σ = 55594656. Its totient is φ = 7173120.

The previous prime is 20922151. The next prime is 20922163. The reversal of 20922160 is 6122902.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (20922163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18121 + ... + 19240.

Almost surely, 2^20922160 is an apocalyptic number.

20922160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20922160 is an abundant number, since it is smaller than the sum of its proper divisors (34672496).

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

20922160 is a wasteful number, since it uses less digits than its factorization.

20922160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37381 (or 37375 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 20922160 is about 4574.0747698305. The cubic root of 20922160 is about 275.5511151826.

The spelling of 20922160 in words is "twenty million, nine hundred twenty-two thousand, one hundred sixty".