491957270 has 16 divisors (see below), whose sum is σ = 1012026528. Its totient is φ = 168671040.

The previous prime is 491957267. The next prime is 491957299. The reversal of 491957270 is 72759194.

It is a congruent number.

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, 3513911 + ... + 3514050.

It is an arithmetic number, because the mean of its divisors is an integer number (63251658).

Almost surely, 2^491957270 is an apocalyptic number.

491957270 is an abundant number, since it is smaller than the sum of its proper divisors (520069258).

491957270 is a wasteful number, since it uses less digits than its factorization.

491957270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7027975.

The product of its (nonzero) digits is 158760, while the sum is 44.

The square root of 491957270 is about 22180.1097833171. The cubic root of 491957270 is about 789.4218223187.

It can be divided in two parts, 49195 and 7270, that added together give a palindrome (56465).

The spelling of 491957270 in words is "four hundred ninety-one million, nine hundred fifty-seven thousand, two hundred seventy".