516647940 has 48 divisors (see below), whose sum is σ = 1448240640. Its totient is φ = 137617920.

The previous prime is 516647863. The next prime is 516647941. The reversal of 516647940 is 49746615.

It is a junction number, because it is equal to n+sod(n) for n = 516647892 and 516647901.

It is not an unprimeable number, because it can be changed into a prime (516647941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55116 + ... + 63804.

It is an arithmetic number, because the mean of its divisors is an integer number (30171680).

Almost surely, 2^516647940 is an apocalyptic number.

It is an amenable number.

516647940 is an abundant number, since it is smaller than the sum of its proper divisors (931592700).

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

516647940 is a wasteful number, since it uses less digits than its factorization.

516647940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9692 (or 9690 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 516647940 is about 22729.8908928310. The cubic root of 516647940 is about 802.4135134520.

The spelling of 516647940 in words is "five hundred sixteen million, six hundred forty-seven thousand, nine hundred forty".