518371542 has 32 divisors (see below), whose sum is σ = 1240548960. Its totient is φ = 159498720.

The previous prime is 518371541. The next prime is 518371619. The reversal of 518371542 is 245173815.

It is a junction number, because it is equal to n+sod(n) for n = 518371497 and 518371506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518371541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 368509 + ... + 369912.

It is an arithmetic number, because the mean of its divisors is an integer number (38767155).

Almost surely, 2^518371542 is an apocalyptic number.

518371542 is an abundant number, since it is smaller than the sum of its proper divisors (722177418).

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

518371542 is a wasteful number, since it uses less digits than its factorization.

518371542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738445 (or 738439 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 518371542 is about 22767.7741995128. The cubic root of 518371542 is about 803.3048401978.

The spelling of 518371542 in words is "five hundred eighteen million, three hundred seventy-one thousand, five hundred forty-two".