491243432 has 16 divisors (see below), whose sum is σ = 938461140. Its totient is φ = 240987136.

The previous prime is 491243387. The next prime is 491243443. The reversal of 491243432 is 234342194.

It can be written as a sum of positive squares in 2 ways, for example, as 410710756 + 80532676 = 20266^2 + 8974^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578873 + ... + 579720.

Almost surely, 2^491243432 is an apocalyptic number.

It is an amenable number.

491243432 is a deficient number, since it is larger than the sum of its proper divisors (447217708).

491243432 is a wasteful number, since it uses less digits than its factorization.

491243432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158652 (or 1158648 counting only the distinct ones).

The product of its digits is 20736, while the sum is 32.

The square root of 491243432 is about 22164.0120916769. The cubic root of 491243432 is about 789.0398161923.

The spelling of 491243432 in words is "four hundred ninety-one million, two hundred forty-three thousand, four hundred thirty-two".