491535730 has 16 divisors (see below), whose sum is σ = 1011159360. Its totient is φ = 168526512.

The previous prime is 491535661. The next prime is 491535767. The reversal of 491535730 is 37535194.

It is a self number, because there is not a number n which added to its sum of digits gives 491535730.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3510900 + ... + 3511039.

It is an arithmetic number, because the mean of its divisors is an integer number (63197460).

Almost surely, 2^491535730 is an apocalyptic number.

491535730 is an abundant number, since it is smaller than the sum of its proper divisors (519623630).

491535730 is a wasteful number, since it uses less digits than its factorization.

491535730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7021953.

The product of its (nonzero) digits is 56700, while the sum is 37.

The square root of 491535730 is about 22170.6050887205. The cubic root of 491535730 is about 789.1962824277.

The spelling of 491535730 in words is "four hundred ninety-one million, five hundred thirty-five thousand, seven hundred thirty".