491437914 has 32 divisors (see below), whose sum is σ = 1078672896. Its totient is φ = 148025520.

The previous prime is 491437913. The next prime is 491437943. The reversal of 491437914 is 419734194.

It is a super-2 number, since 2×491437914² = 483022446633342792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (491437913) 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, 11272 + ... + 33315.

It is an arithmetic number, because the mean of its divisors is an integer number (33708528).

Almost surely, 2^491437914 is an apocalyptic number.

491437914 is an abundant number, since it is smaller than the sum of its proper divisors (587234982).

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

491437914 is a wasteful number, since it uses less digits than its factorization.

491437914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44770.

The product of its digits is 108864, while the sum is 42.

The square root of 491437914 is about 22168.3989949658. The cubic root of 491437914 is about 789.1439287261.

The spelling of 491437914 in words is "four hundred ninety-one million, four hundred thirty-seven thousand, nine hundred fourteen".