20953448 has 16 divisors (see below), whose sum is σ = 39730500. Its totient is φ = 10358656.

The previous prime is 20953421. The next prime is 20953451. The reversal of 20953448 is 84435902.

It can be written as a sum of positive squares in 2 ways, for example, as 20775364 + 178084 = 4558^2 + 422^2 .

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, 14003 + ... + 15426.

Almost surely, 2^20953448 is an apocalyptic number.

It is an amenable number.

20953448 is a deficient number, since it is larger than the sum of its proper divisors (18777052).

20953448 is a wasteful number, since it uses less digits than its factorization.

20953448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29524 (or 29520 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 20953448 is about 4577.4936373522. The cubic root of 20953448 is about 275.6884042136.

The spelling of 20953448 in words is "twenty million, nine hundred fifty-three thousand, four hundred forty-eight".