491585024 has 80 divisors (see below), whose sum is σ = 1181769600. Its totient is φ = 199563264.

The previous prime is 491585023. The next prime is 491585027. The reversal of 491585024 is 420585194.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491585021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64487 + ... + 71705.

It is an arithmetic number, because the mean of its divisors is an integer number (14772120).

Almost surely, 2^491585024 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 491585024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (590884800).

491585024 is an abundant number, since it is smaller than the sum of its proper divisors (690184576).

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

491585024 is an equidigital number, since it uses as much as digits as its factorization.

491585024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7263 (or 7247 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 38.

The square root of 491585024 is about 22171.7167580681. The cubic root of 491585024 is about 789.2226632438. Note that the first 3 decimals are identical.

The spelling of 491585024 in words is "four hundred ninety-one million, five hundred eighty-five thousand, twenty-four".