516327440 has 20 divisors (see below), whose sum is σ = 1200461484. Its totient is φ = 206530944.

The previous prime is 516327433. The next prime is 516327457. The reversal of 516327440 is 44723615.

It can be written as a sum of positive squares in 2 ways, for example, as 157452304 + 358875136 = 12548^2 + 18944^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 516327397 and 516327406.

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 3 ways as a sum of consecutive naturals, for example, 3226967 + ... + 3227126.

Almost surely, 2^516327440 is an apocalyptic number.

It is an amenable number.

516327440 is an abundant number, since it is smaller than the sum of its proper divisors (684134044).

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

516327440 is a wasteful number, since it uses less digits than its factorization.

516327440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6454106 (or 6454100 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 516327440 is about 22722.8396112810. The cubic root of 516327440 is about 802.2475547090.

The spelling of 516327440 in words is "five hundred sixteen million, three hundred twenty-seven thousand, four hundred forty".