909413491 has 48 divisors (see below), whose sum is σ = 1149678144. Its totient is φ = 715309056.

The previous prime is 909413447. The next prime is 909413501. The reversal of 909413491 is 194314909.

909413491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 909413491 - 2²⁵ = 875859059 is a prime.

It is a super-2 number, since 2×909413491² = 1654065795225614162, which contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (909413441) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4711891 + ... + 4712083.

It is an arithmetic number, because the mean of its divisors is an integer number (23951628).

Almost surely, 2^909413491 is an apocalyptic number.

909413491 is a deficient number, since it is larger than the sum of its proper divisors (240264653).

909413491 is a wasteful number, since it uses less digits than its factorization.

909413491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380 (or 373 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 909413491 is about 30156.4833990968. The cubic root of 909413491 is about 968.8438739361.

The spelling of 909413491 in words is "nine hundred nine million, four hundred thirteen thousand, four hundred ninety-one".