20468944 has 10 divisors (see below), whose sum is σ = 39658610. Its totient is φ = 10234464.

The previous prime is 20468939. The next prime is 20468951. The reversal of 20468944 is 44986402.

It can be written as a sum of positive squares in only one way, i.e., 15681600 + 4787344 = 3960^2 + 2188^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 639639 + ... + 639670.

It is an arithmetic number, because the mean of its divisors is an integer number (3965861).

Almost surely, 2^20468944 is an apocalyptic number.

It is an amenable number.

20468944 is a deficient number, since it is larger than the sum of its proper divisors (19189666).

20468944 is a wasteful number, since it uses less digits than its factorization.

20468944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279317 (or 1279311 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 20468944 is about 4524.2617077265. The cubic root of 20468944 is about 273.5469095488.

It can be divided in two parts, 20468 and 944, that added together give a palindrome (21412).

The spelling of 20468944 in words is "twenty million, four hundred sixty-eight thousand, nine hundred forty-four".