491384130 has 32 divisors (see below), whose sum is σ = 1192579200. Its totient is φ = 129562752.

The previous prime is 491384129. The next prime is 491384141. The reversal of 491384130 is 31483194.

It is a junction number, because it is equal to n+sod(n) for n = 491384091 and 491384100.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89350 + ... + 94689.

It is an arithmetic number, because the mean of its divisors is an integer number (37268100).

Almost surely, 2^491384130 is an apocalyptic number.

491384130 is an abundant number, since it is smaller than the sum of its proper divisors (701195070).

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

491384130 is a wasteful number, since it uses less digits than its factorization.

491384130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184138.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 491384130 is about 22167.1858836434. The cubic root of 491384130 is about 789.1151391514.

The spelling of 491384130 in words is "four hundred ninety-one million, three hundred eighty-four thousand, one hundred thirty".