518577340 has 24 divisors (see below), whose sum is σ = 1098654480. Its totient is φ = 205594368.

The previous prime is 518577313. The next prime is 518577347. The reversal of 518577340 is 43775815.

It is a super-2 number, since 2×518577340² = 537844915122951200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 518577293 and 518577302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518577347) 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, 112470 + ... + 116989.

It is an arithmetic number, because the mean of its divisors is an integer number (45777270).

Almost surely, 2^518577340 is an apocalyptic number.

It is an amenable number.

518577340 is an abundant number, since it is smaller than the sum of its proper divisors (580077140).

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

518577340 is a wasteful number, since it uses less digits than its factorization.

518577340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229581 (or 229579 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 40.

The square root of 518577340 is about 22772.2932529862. The cubic root of 518577340 is about 803.4111324632.

The spelling of 518577340 in words is "five hundred eighteen million, five hundred seventy-seven thousand, three hundred forty".