20952722 has 32 divisors (see below), whose sum is σ = 37183104. Its totient is φ = 8668800.

The previous prime is 20952719. The next prime is 20952731. The reversal of 20952722 is 22725902.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a zygodrome in base 8.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99197 + ... + 99407.

It is an arithmetic number, because the mean of its divisors is an integer number (1161972).

Almost surely, 2^20952722 is an apocalyptic number.

20952722 is a deficient number, since it is larger than the sum of its proper divisors (16230382).

20952722 is a wasteful number, since it uses less digits than its factorization.

20952722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 20952722 is about 4577.4143356266. The cubic root of 20952722 is about 275.6852201379.

The spelling of 20952722 in words is "twenty million, nine hundred fifty-two thousand, seven hundred twenty-two".