491093504 has 60 divisors (see below), whose sum is σ = 1078675752. Its totient is φ = 223196160.

The previous prime is 491093503. The next prime is 491093507. The reversal of 491093504 is 405390194.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491093503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57989 + ... + 65915.

Almost surely, 2^491093504 is an apocalyptic number.

491093504 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 491093504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (539337876).

491093504 is an abundant number, since it is smaller than the sum of its proper divisors (587582248).

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

491093504 is an equidigital number, since it uses as much as digits as its factorization.

491093504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7967 (or 7940 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 491093504 is about 22160.6295939443. The cubic root of 491093504 is about 788.9595361037.

The spelling of 491093504 in words is "four hundred ninety-one million, ninety-three thousand, five hundred four".