491361024 has 216 divisors, whose sum is σ = 1660938048. Its totient is φ = 127518720.

The previous prime is 491360963. The next prime is 491361053. The reversal of 491361024 is 420163194.

It is a junction number, because it is equal to n+sod(n) for n = 491360982 and 491361000.

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 23 ways as a sum of consecutive naturals, for example, 413359 + ... + 414545.

It is an arithmetic number, because the mean of its divisors is an integer number (7689528).

Almost surely, 2^491361024 is an apocalyptic number.

491361024 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 491361024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (830469024).

491361024 is an abundant number, since it is smaller than the sum of its proper divisors (1169577024).

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

491361024 is a wasteful number, since it uses less digits than its factorization.

491361024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231 (or 1210 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 491361024 is about 22166.6647017543. The cubic root of 491361024 is about 789.1027702944.

The spelling of 491361024 in words is "four hundred ninety-one million, three hundred sixty-one thousand, twenty-four".