518066340 has 72 divisors (see below), whose sum is σ = 1594467840. Its totient is φ = 125590080.

The previous prime is 518066333. The next prime is 518066371. The reversal of 518066340 is 43660815.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28420 + ... + 42939.

Almost surely, 2^518066340 is an apocalyptic number.

It is an amenable number.

518066340 is an abundant number, since it is smaller than the sum of its proper divisors (1076401500).

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

518066340 is a wasteful number, since it uses less digits than its factorization.

518066340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71393 (or 71380 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 518066340 is about 22761.0707129520. The cubic root of 518066340 is about 803.1471551166.

The spelling of 518066340 in words is "five hundred eighteen million, sixty-six thousand, three hundred forty".