20792444 has 24 divisors (see below), whose sum is σ = 38091648. Its totient is φ = 9918720.

The previous prime is 20792419. The next prime is 20792459. The reversal of 20792444 is 44429702.

It is a self number, because there is not a number n which added to its sum of digits gives 20792444.

It is a congruent number.

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, 7904 + ... + 10200.

It is an arithmetic number, because the mean of its divisors is an integer number (1587152).

Almost surely, 2^20792444 is an apocalyptic number.

It is an amenable number.

20792444 is a deficient number, since it is larger than the sum of its proper divisors (17299204).

20792444 is a wasteful number, since it uses less digits than its factorization.

20792444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2405 (or 2403 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 20792444 is about 4559.8732438523. The cubic root of 20792444 is about 274.9804680343.

The spelling of 20792444 in words is "twenty million, seven hundred ninety-two thousand, four hundred forty-four".