518142276 has 36 divisors (see below), whose sum is σ = 1311547692. Its totient is φ = 172476864.

The previous prime is 518142259. The next prime is 518142301. The reversal of 518142276 is 672241815.

It can be written as a sum of positive squares in 2 ways, for example, as 101002500 + 417139776 = 10050^2 + 20424^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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 518142276.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17746 + ... + 36758.

Almost surely, 2^518142276 is an apocalyptic number.

It is an amenable number.

518142276 is an abundant number, since it is smaller than the sum of its proper divisors (793405416).

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

518142276 is a wasteful number, since it uses less digits than its factorization.

518142276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19780 (or 19775 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 518142276 is about 22762.7387631629. The cubic root of 518142276 is about 803.1863938512.

The spelling of 518142276 in words is "five hundred eighteen million, one hundred forty-two thousand, two hundred seventy-six".