491572382 has 16 divisors (see below), whose sum is σ = 843223392. Its totient is φ = 210541920.

The previous prime is 491572379. The next prime is 491572421. The reversal of 491572382 is 283275194.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14132 + ... + 34392.

It is an arithmetic number, because the mean of its divisors is an integer number (52701462).

Almost surely, 2^491572382 is an apocalyptic number.

491572382 is a deficient number, since it is larger than the sum of its proper divisors (351651010).

491572382 is a wasteful number, since it uses less digits than its factorization.

491572382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22003.

The product of its digits is 120960, while the sum is 41.

The square root of 491572382 is about 22171.4316632914. The cubic root of 491572382 is about 789.2158977554.

The spelling of 491572382 in words is "four hundred ninety-one million, five hundred seventy-two thousand, three hundred eighty-two".