618398334 has 16 divisors (see below), whose sum is σ = 1374218640. Its totient is φ = 206132760.

The previous prime is 618398251. The next prime is 618398359. The reversal of 618398334 is 433893816.

It is a self number, because there is not a number n which added to its sum of digits gives 618398334.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5725857 + ... + 5725964.

It is an arithmetic number, because the mean of its divisors is an integer number (85888665).

Almost surely, 2^618398334 is an apocalyptic number.

618398334 is an abundant number, since it is smaller than the sum of its proper divisors (755820306).

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

618398334 is a wasteful number, since it uses less digits than its factorization.

618398334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11451832 (or 11451826 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 618398334 is about 24867.6161704334. The cubic root of 618398334 is about 851.9669943572.

The spelling of 618398334 in words is "six hundred eighteen million, three hundred ninety-eight thousand, three hundred thirty-four".