20753044 has 12 divisors (see below), whose sum is σ = 39111604. Its totient is φ = 9578304.

The previous prime is 20753027. The next prime is 20753059. The reversal of 20753044 is 44035702.

It can be written as a sum of positive squares in 2 ways, for example, as 10640644 + 10112400 = 3262^2 + 3180^2 .

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, 199497 + ... + 199600.

Almost surely, 2^20753044 is an apocalyptic number.

It is an amenable number.

20753044 is a deficient number, since it is larger than the sum of its proper divisors (18358560).

20753044 is a wasteful number, since it uses less digits than its factorization.

20753044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399114 (or 399112 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 20753044 is about 4555.5508997266. The cubic root of 20753044 is about 274.8066696265.

Adding to 20753044 its reverse (44035702), we get a palindrome (64788746).

The spelling of 20753044 in words is "twenty million, seven hundred fifty-three thousand, forty-four".