20022964 has 12 divisors (see below), whose sum is σ = 37735684. Its totient is φ = 9241344.

The previous prime is 20022943. The next prime is 20022971. The reversal of 20022964 is 46922002.

It can be written as a sum of positive squares in 2 ways, for example, as 1464100 + 18558864 = 1210^2 + 4308^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192477 + ... + 192580.

Almost surely, 2^20022964 is an apocalyptic number.

It is an amenable number.

20022964 is a deficient number, since it is larger than the sum of its proper divisors (17712720).

20022964 is a wasteful number, since it uses less digits than its factorization.

20022964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385074 (or 385072 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 20022964 is about 4474.7026716867. The cubic root of 20022964 is about 271.5456117330.

Adding to 20022964 its reverse (46922002), we get a palindrome (66944966).

The spelling of 20022964 in words is "twenty million, twenty-two thousand, nine hundred sixty-four".