494187580 has 12 divisors (see below), whose sum is σ = 1037793960. Its totient is φ = 197675024.

The previous prime is 494187559. The next prime is 494187583. The reversal of 494187580 is 85781494.

It is a self number, because there is not a number n which added to its sum of digits gives 494187580.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494187583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12354670 + ... + 12354709.

It is an arithmetic number, because the mean of its divisors is an integer number (86482830).

Almost surely, 2^494187580 is an apocalyptic number.

It is an amenable number.

494187580 is an abundant number, since it is smaller than the sum of its proper divisors (543606380).

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

494187580 is a wasteful number, since it uses less digits than its factorization.

494187580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24709388 (or 24709386 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 46.

The square root of 494187580 is about 22230.3301819834. The cubic root of 494187580 is about 790.6129836269.

The spelling of 494187580 in words is "four hundred ninety-four million, one hundred eighty-seven thousand, five hundred eighty".