491271952 has 10 divisors (see below), whose sum is σ = 951839438. Its totient is φ = 245635968.

The previous prime is 491271943. The next prime is 491271953. The reversal of 491271952 is 259172194.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 283450896 + 207821056 = 16836^2 + 14416^2 .

It is not an unprimeable number, because it can be changed into a prime (491271953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15352233 + ... + 15352264.

Almost surely, 2^491271952 is an apocalyptic number.

It is an amenable number.

491271952 is a deficient number, since it is larger than the sum of its proper divisors (460567486).

491271952 is a wasteful number, since it uses less digits than its factorization.

491271952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30704505 (or 30704499 counting only the distinct ones).

The product of its digits is 45360, while the sum is 40.

The square root of 491271952 is about 22164.6554676584. The cubic root of 491271952 is about 789.0550855941.

The spelling of 491271952 in words is "four hundred ninety-one million, two hundred seventy-one thousand, nine hundred fifty-two".