491614272 has 196 divisors, whose sum is σ = 1504155996. Its totient is φ = 159252480.

The previous prime is 491614271. The next prime is 491614283. The reversal of 491614272 is 272416194.

It is a happy number.

491614272 is a `hidden beast` number, since 491 + 61 + 42 + 72 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 269485056 + 222129216 = 16416^2 + 14904^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (491614271) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1912768 + ... + 1913024.

Almost surely, 2^491614272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 491614272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (752077998).

491614272 is an abundant number, since it is smaller than the sum of its proper divisors (1012541724).

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

491614272 is an equidigital number, since it uses as much as digits as its factorization.

491614272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 303 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 491614272 is about 22172.3763273132. The cubic root of 491614272 is about 789.2383151491.

The spelling of 491614272 in words is "four hundred ninety-one million, six hundred fourteen thousand, two hundred seventy-two".