20620722 has 16 divisors (see below), whose sum is σ = 41285952. Its totient is φ = 6866160.

The previous prime is 20620709. The next prime is 20620751. The reversal of 20620722 is 22702602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10048 + ... + 11924.

It is an arithmetic number, because the mean of its divisors is an integer number (2580372).

Almost surely, 2^20620722 is an apocalyptic number.

20620722 is an abundant number, since it is smaller than the sum of its proper divisors (20665230).

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

20620722 is a wasteful number, since it uses less digits than its factorization.

20620722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3713.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 20620722 is about 4541.0045144219. The cubic root of 20620722 is about 274.2213655005.

The spelling of 20620722 in words is "twenty million, six hundred twenty thousand, seven hundred twenty-two".