20869162 has 12 divisors (see below), whose sum is σ = 31658310. Its totient is φ = 10317696.

The previous prime is 20869159. The next prime is 20869181. The reversal of 20869162 is 26196802.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 10699441 + 10169721 = 3271^2 + 3189^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18264 + ... + 19372.

Almost surely, 2^20869162 is an apocalyptic number.

20869162 is a deficient number, since it is larger than the sum of its proper divisors (10789148).

20869162 is an equidigital number, since it uses as much as digits as its factorization.

20869162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305 (or 1208 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 20869162 is about 4568.2777936548. The cubic root of 20869162 is about 275.3182519371.

The spelling of 20869162 in words is "twenty million, eight hundred sixty-nine thousand, one hundred sixty-two".