516247140 has 24 divisors (see below), whose sum is σ = 1445492160. Its totient is φ = 137665888.

The previous prime is 516247139. The next prime is 516247153. The reversal of 516247140 is 41742615.

It is a super-2 number, since 2×516247140² = 533022219116359200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 516247098 and 516247107.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4302000 + ... + 4302119.

It is an arithmetic number, because the mean of its divisors is an integer number (60228840).

Almost surely, 2^516247140 is an apocalyptic number.

It is an amenable number.

516247140 is an abundant number, since it is smaller than the sum of its proper divisors (929245020).

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

516247140 is a wasteful number, since it uses less digits than its factorization.

516247140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8604131 (or 8604129 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 516247140 is about 22721.0725979211. The cubic root of 516247140 is about 802.2059636478.

Adding to 516247140 its reverse (41742615), we get a palindrome (557989755).

The spelling of 516247140 in words is "five hundred sixteen million, two hundred forty-seven thousand, one hundred forty".