491461632 has 66 divisors (see below), whose sum is σ = 1419111408. Its totient is φ = 163817472.

The previous prime is 491461627. The next prime is 491461651. The reversal of 491461632 is 236164194.

491461632 is a `hidden beast` number, since 4 + 9 + 1 + 4 + 616 + 32 = 666.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17448 + ... + 35879.

It is an arithmetic number, because the mean of its divisors is an integer number (21501688).

Almost surely, 2^491461632 is an apocalyptic number.

It is an amenable number.

491461632 is an abundant number, since it is smaller than the sum of its proper divisors (927649776).

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

491461632 is a wasteful number, since it uses less digits than its factorization.

491461632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53353 (or 53332 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 491461632 is about 22168.9339391862. The cubic root of 491461632 is about 789.1566238629.

It can be divided in two parts, 49 and 1461632, that added together give a square (1461681 = 1209²).

The spelling of 491461632 in words is "four hundred ninety-one million, four hundred sixty-one thousand, six hundred thirty-two".