491580074 has 8 divisors (see below), whose sum is σ = 738326340. Its totient is φ = 245471296.

The previous prime is 491580059. The next prime is 491580121. The reversal of 491580074 is 470085194.

It can be written as a sum of positive squares in 2 ways, for example, as 323748049 + 167832025 = 17993^2 + 12955^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 157439 + ... + 160530.

Almost surely, 2^491580074 is an apocalyptic number.

491580074 is a deficient number, since it is larger than the sum of its proper divisors (246746266).

491580074 is a wasteful number, since it uses less digits than its factorization.

491580074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318744.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 491580074 is about 22171.6051290835. The cubic root of 491580074 is about 789.2200142173.

The spelling of 491580074 in words is "four hundred ninety-one million, five hundred eighty thousand, seventy-four".