518047040 has 56 divisors (see below), whose sum is σ = 1409834112. Its totient is φ = 177615360.

The previous prime is 518047037. The next prime is 518047051. The reversal of 518047040 is 40740815.

It is a tau number, because it is divible by the number of its divisors (56).

It is a junction number, because it is equal to n+sod(n) for n = 518046994 and 518047012.

It is a congruent number.

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, 113396 + ... + 117875.

Almost surely, 2^518047040 is an apocalyptic number.

It is an amenable number.

518047040 is an abundant number, since it is smaller than the sum of its proper divisors (891787072).

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

518047040 is a wasteful number, since it uses less digits than its factorization.

518047040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231295 (or 231285 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 518047040 is about 22760.6467394931. The cubic root of 518047040 is about 803.1371815339.

Adding to 518047040 its reverse (40740815), we get a palindrome (558787855).

The spelling of 518047040 in words is "five hundred eighteen million, forty-seven thousand, forty".