20022916 has 12 divisors (see below), whose sum is σ = 35102620. Its totient is φ = 9993600.

The previous prime is 20022913. The next prime is 20022943. The reversal of 20022916 is 61922002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9486400 + 10536516 = 3080^2 + 3246^2 .

It is not an unprimeable number, because it can be changed into a prime (20022911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1761 + ... + 6568.

Almost surely, 2^20022916 is an apocalyptic number.

It is an amenable number.

20022916 is a deficient number, since it is larger than the sum of its proper divisors (15079704).

20022916 is a wasteful number, since it uses less digits than its factorization.

20022916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8934 (or 8932 counting only the distinct ones).

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

The square root of 20022916 is about 4474.6973081986. The cubic root of 20022916 is about 271.5453947455.

Adding to 20022916 its reverse (61922002), we get a palindrome (81944918).

The spelling of 20022916 in words is "twenty million, twenty-two thousand, nine hundred sixteen".