909420868 has 12 divisors (see below), whose sum is σ = 1609369020. Its totient is φ = 449601152.

The previous prime is 909420821. The next prime is 909420901. The reversal of 909420868 is 868024909.

It can be written as a sum of positive squares in 2 ways, for example, as 111471364 + 797949504 = 10558^2 + 28248^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1276921 + ... + 1277632.

It is an arithmetic number, because the mean of its divisors is an integer number (134114085).

Almost surely, 2^909420868 is an apocalyptic number.

It is an amenable number.

909420868 is a deficient number, since it is larger than the sum of its proper divisors (699948152).

909420868 is a wasteful number, since it uses less digits than its factorization.

909420868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2554646 (or 2554644 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 909420868 is about 30156.6057108555. The cubic root of 909420868 is about 968.8464936252.

The spelling of 909420868 in words is "nine hundred nine million, four hundred twenty thousand, eight hundred sixty-eight".