20775364 has 27 divisors (see below), whose sum is σ = 37937613. Its totient is φ = 9954672.

The previous prime is 20775331. The next prime is 20775383. The reversal of 20775364 is 46357702.

It is a happy number.

The square root of 20775364 is 4558.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 14976900 + 5798464 = 3870^2 + 2408^2 .

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 391962 + ... + 392014.

Almost surely, 2^20775364 is an apocalyptic number.

20775364 is the 4558-th square number.

It is an amenable number.

20775364 is a deficient number, since it is larger than the sum of its proper divisors (17162249).

20775364 is an equidigital number, since it uses as much as digits as its factorization.

20775364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 34.

The cubic root of 20775364 is about 274.9051529661.

The spelling of 20775364 in words is "twenty million, seven hundred seventy-five thousand, three hundred sixty-four".