491602068 has 24 divisors (see below), whose sum is σ = 1274524160. Its totient is φ = 163867320.

The previous prime is 491602051. The next prime is 491602079. The reversal of 491602068 is 860206194.

491602068 is a `hidden beast` number, since 49 + 1 + 602 + 0 + 6 + 8 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 2275828 + ... + 2276043.

Almost surely, 2^491602068 is an apocalyptic number.

It is an amenable number.

491602068 is an abundant number, since it is smaller than the sum of its proper divisors (782922092).

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

491602068 is a wasteful number, since it uses less digits than its factorization.

491602068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4551884 (or 4551876 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 491602068 is about 22172.1011182973. The cubic root of 491602068 is about 789.2317843215.

The spelling of 491602068 in words is "four hundred ninety-one million, six hundred two thousand, sixty-eight".