491168304 has 60 divisors (see below), whose sum is σ = 1499556552. Its totient is φ = 148838400.

The previous prime is 491168287. The next prime is 491168311. The reversal of 491168304 is 403861194.

491168304 is a `hidden beast` number, since 491 + 168 + 3 + 0 + 4 = 666.

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

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, 153457 + ... + 156624.

Almost surely, 2^491168304 is an apocalyptic number.

491168304 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

491168304 is an abundant number, since it is smaller than the sum of its proper divisors (1008388248).

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

491168304 is a wasteful number, since it uses less digits than its factorization.

491168304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310106 (or 310097 counting only the distinct ones).

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

The square root of 491168304 is about 22162.3172073680. The cubic root of 491168304 is about 788.9995903751. Note that the first 3 decimals are identical.

The spelling of 491168304 in words is "four hundred ninety-one million, one hundred sixty-eight thousand, three hundred four".