20949352 has 16 divisors (see below), whose sum is σ = 39924900. Its totient is φ = 10302720.

The previous prime is 20949329. The next prime is 20949353. The reversal of 20949352 is 25394902.

It can be written as a sum of positive squares in 2 ways, for example, as 12574116 + 8375236 = 3546^2 + 2894^2 .

It is not an unprimeable number, because it can be changed into a prime (20949353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20977 + ... + 21952.

Almost surely, 2^20949352 is an apocalyptic number.

It is an amenable number.

20949352 is a deficient number, since it is larger than the sum of its proper divisors (18975548).

20949352 is a wasteful number, since it uses less digits than its factorization.

20949352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42996 (or 42992 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 20949352 is about 4577.0462090741. The cubic root of 20949352 is about 275.6704390989.

The spelling of 20949352 in words is "twenty million, nine hundred forty-nine thousand, three hundred fifty-two".