20456922 has 16 divisors (see below), whose sum is σ = 41003712. Its totient is φ = 6804000.

The previous prime is 20456879. The next prime is 20456941. The reversal of 20456922 is 22965402.

It is a self number, because there is not a number n which added to its sum of digits gives 20456922.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 579 + ... + 6422.

It is an arithmetic number, because the mean of its divisors is an integer number (2562732).

Almost surely, 2^20456922 is an apocalyptic number.

20456922 is an abundant number, since it is smaller than the sum of its proper divisors (20546790).

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

20456922 is a wasteful number, since it uses less digits than its factorization.

20456922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7493.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 20456922 is about 4522.9328980209. The cubic root of 20456922 is about 273.4933450694.

The spelling of 20456922 in words is "twenty million, four hundred fifty-six thousand, nine hundred twenty-two".