20949364 has 12 divisors (see below), whose sum is σ = 36998500. Its totient is φ = 10378368.

The previous prime is 20949353. The next prime is 20949367. The reversal of 20949364 is 46394902.

It can be written as a sum of positive squares in 2 ways, for example, as 7333264 + 13616100 = 2708^2 + 3690^2 .

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20949367) 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, 23589 + ... + 24460.

Almost surely, 2^20949364 is an apocalyptic number.

It is an amenable number.

20949364 is a deficient number, since it is larger than the sum of its proper divisors (16049136).

20949364 is a wasteful number, since it uses less digits than its factorization.

20949364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48162 (or 48160 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 20949364 is about 4577.0475199631. The cubic root of 20949364 is about 275.6704917345.

The spelling of 20949364 in words is "twenty million, nine hundred forty-nine thousand, three hundred sixty-four".