491843862 has 24 divisors (see below), whose sum is σ = 1069604640. Its totient is φ = 163341360.

The previous prime is 491843819. The next prime is 491843873. The reversal of 491843862 is 268348194.

It is a happy number.

491843862 is a `hidden beast` number, since 491 + 84 + 3 + 86 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45537 + ... + 55292.

It is an arithmetic number, because the mean of its divisors is an integer number (44566860).

Almost surely, 2^491843862 is an apocalyptic number.

491843862 is an abundant number, since it is smaller than the sum of its proper divisors (577760778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

491843862 is a wasteful number, since it uses less digits than its factorization.

491843862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101108 (or 101105 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 491843862 is about 22177.5531111978. The cubic root of 491843862 is about 789.3611574089.

The spelling of 491843862 in words is "four hundred ninety-one million, eight hundred forty-three thousand, eight hundred sixty-two".