491152242 has 32 divisors (see below), whose sum is σ = 1181721600. Its totient is φ = 132943248.

The previous prime is 491152217. The next prime is 491152247. The reversal of 491152242 is 242251194.

It is not an unprimeable number, because it can be changed into a prime (491152247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 306942 + ... + 308537.

It is an arithmetic number, because the mean of its divisors is an integer number (36928800).

Almost surely, 2^491152242 is an apocalyptic number.

491152242 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

491152242 is an abundant number, since it is smaller than the sum of its proper divisors (690569358).

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

491152242 is a wasteful number, since it uses less digits than its factorization.

491152242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615510.

The product of its digits is 5760, while the sum is 30.

The square root of 491152242 is about 22161.9548325503. The cubic root of 491152242 is about 788.9909897593.

The spelling of 491152242 in words is "four hundred ninety-one million, one hundred fifty-two thousand, two hundred forty-two".