518390534 has 8 divisors (see below), whose sum is σ = 777706920. Its totient is φ = 259154896.

The previous prime is 518390533. The next prime is 518390539. The reversal of 518390534 is 435093815.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518390533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164 + ... + 32199.

It is an arithmetic number, because the mean of its divisors is an integer number (97213365).

Almost surely, 2^518390534 is an apocalyptic number.

518390534 is a deficient number, since it is larger than the sum of its proper divisors (259316386).

518390534 is a wasteful number, since it uses less digits than its factorization.

518390534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40374.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 518390534 is about 22768.1912764277. The cubic root of 518390534 is about 803.3146505223.

The spelling of 518390534 in words is "five hundred eighteen million, three hundred ninety thousand, five hundred thirty-four".