20052644 has 12 divisors (see below), whose sum is σ = 35839104. Its totient is φ = 9812904.

The previous prime is 20052623. The next prime is 20052653. The reversal of 20052644 is 44625002.

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 3 ways as a sum of consecutive naturals, for example, 53144 + ... + 53519.

It is an arithmetic number, because the mean of its divisors is an integer number (2986592).

Almost surely, 2^20052644 is an apocalyptic number.

It is an amenable number.

20052644 is a deficient number, since it is larger than the sum of its proper divisors (15786460).

20052644 is a wasteful number, since it uses less digits than its factorization.

20052644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106714 (or 106712 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 20052644 is about 4478.0178650827. The cubic root of 20052644 is about 271.6797160020.

Adding to 20052644 its reverse (44625002), we get a palindrome (64677646).

The spelling of 20052644 in words is "twenty million, fifty-two thousand, six hundred forty-four".