494320356 has 72 divisors (see below), whose sum is σ = 1326367224. Its totient is φ = 154690560.

The previous prime is 494320297. The next prime is 494320367. The reversal of 494320356 is 653023494.

It can be written as a sum of positive squares in 4 ways, for example, as 204776100 + 289544256 = 14310^2 + 17016^2 .

It is a super-2 number, since 2×494320356² = 488705228711933472, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 494320356.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 330346 + ... + 331838.

It is an arithmetic number, because the mean of its divisors is an integer number (18421767).

Almost surely, 2^494320356 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 494320356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (663183612).

494320356 is an abundant number, since it is smaller than the sum of its proper divisors (832046868).

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

494320356 is a wasteful number, since it uses less digits than its factorization.

494320356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2061 (or 2056 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The square root of 494320356 is about 22233.3163518176. The cubic root of 494320356 is about 790.6837833488.

The spelling of 494320356 in words is "four hundred ninety-four million, three hundred twenty thousand, three hundred fifty-six".