516281380 has 24 divisors (see below), whose sum is σ = 1087067520. Its totient is φ = 205964640.

The previous prime is 516281351. The next prime is 516281383. The reversal of 516281380 is 83182615.

It is not an unprimeable number, because it can be changed into a prime (516281383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26476 + ... + 41635.

It is an arithmetic number, because the mean of its divisors is an integer number (45294480).

Almost surely, 2^516281380 is an apocalyptic number.

It is an amenable number.

516281380 is an abundant number, since it is smaller than the sum of its proper divisors (570786140).

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

516281380 is a wasteful number, since it uses less digits than its factorization.

516281380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68499 (or 68497 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 516281380 is about 22721.8260709829. The cubic root of 516281380 is about 802.2236986451.

The spelling of 516281380 in words is "five hundred sixteen million, two hundred eighty-one thousand, three hundred eighty".