20321044 has 12 divisors (see below), whose sum is σ = 35610624. Its totient is φ = 10146584.

The previous prime is 20321039. The next prime is 20321053. The reversal of 20321044 is 44012302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237 + ... + 6379.

It is an arithmetic number, because the mean of its divisors is an integer number (2967552).

Almost surely, 2^20321044 is an apocalyptic number.

It is an amenable number.

20321044 is a deficient number, since it is larger than the sum of its proper divisors (15289580).

20321044 is a wasteful number, since it uses less digits than its factorization.

20321044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6974 (or 6972 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 20321044 is about 4507.8868663710. The cubic root of 20321044 is about 272.8864712419.

Adding to 20321044 its reverse (44012302), we get a palindrome (64333346).

The spelling of 20321044 in words is "twenty million, three hundred twenty-one thousand, forty-four".