491058860 has 12 divisors (see below), whose sum is σ = 1031223648. Its totient is φ = 196423536.

The previous prime is 491058847. The next prime is 491058907. The reversal of 491058860 is 68850194.

It is a super-2 number, since 2×491058860² = 482277607968999200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

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, 12276452 + ... + 12276491.

It is an arithmetic number, because the mean of its divisors is an integer number (85935304).

Almost surely, 2^491058860 is an apocalyptic number.

It is an amenable number.

491058860 is an abundant number, since it is smaller than the sum of its proper divisors (540164788).

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

491058860 is a wasteful number, since it uses less digits than its factorization.

491058860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24552952 (or 24552950 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 491058860 is about 22159.8479236659. The cubic root of 491058860 is about 788.9409833864.

The spelling of 491058860 in words is "four hundred ninety-one million, fifty-eight thousand, eight hundred sixty".