20884722 has 16 divisors (see below), whose sum is σ = 41951520. Its totient is φ = 6931232.

The previous prime is 20884711. The next prime is 20884739. The reversal of 20884722 is 22748802.

It is a super-2 number, since 2×20884722² = 872343226034568, which contains 22 as substring.

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, 6072 + ... + 8867.

It is an arithmetic number, because the mean of its divisors is an integer number (2621970).

Almost surely, 2^20884722 is an apocalyptic number.

20884722 is an abundant number, since it is smaller than the sum of its proper divisors (21066798).

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

20884722 is a wasteful number, since it uses less digits than its factorization.

20884722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15177.

The product of its (nonzero) digits is 14336, while the sum is 33.

The square root of 20884722 is about 4569.9805251226. The cubic root of 20884722 is about 275.3866604935.

The spelling of 20884722 in words is "twenty million, eight hundred eighty-four thousand, seven hundred twenty-two".