494813520 has 90 divisors (see below), whose sum is σ = 1663755678. Its totient is φ = 131791104.

The previous prime is 494813519. The next prime is 494813531. The reversal of 494813520 is 25318494.

It can be written as a sum of positive squares in 3 ways, for example, as 74235456 + 420578064 = 8616^2 + 20508^2 .

It is a tau number, because it is divible by the number of its divisors (90).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 596466 + ... + 597294.

Almost surely, 2^494813520 is an apocalyptic number.

494813520 is a gapful number since it is divisible by the number (40) 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 494813520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (831877839).

494813520 is an abundant number, since it is smaller than the sum of its proper divisors (1168942158).

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

494813520 is an equidigital number, since it uses as much as digits as its factorization.

494813520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1677 (or 839 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 494813520 is about 22244.4042401679. The cubic root of 494813520 is about 790.9466406703.

The spelling of 494813520 in words is "four hundred ninety-four million, eight hundred thirteen thousand, five hundred twenty".