518399382 has 16 divisors (see below), whose sum is σ = 1091367360. Its totient is φ = 163705032.

The previous prime is 518399381. The next prime is 518399407. The reversal of 518399382 is 283993815.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518399381) 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, 2273568 + ... + 2273795.

It is an arithmetic number, because the mean of its divisors is an integer number (68210460).

Almost surely, 2^518399382 is an apocalyptic number.

518399382 is an abundant number, since it is smaller than the sum of its proper divisors (572967978).

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

518399382 is a wasteful number, since it uses less digits than its factorization.

518399382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4547387.

The product of its digits is 466560, while the sum is 48.

The square root of 518399382 is about 22768.3855817667. The cubic root of 518399382 is about 803.3192208781.

The spelling of 518399382 in words is "five hundred eighteen million, three hundred ninety-nine thousand, three hundred eighty-two".