618879238 has 8 divisors (see below), whose sum is σ = 934467120. Its totient is φ = 307390200.

The previous prime is 618879223. The next prime is 618879259. The reversal of 618879238 is 832978816.

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

It is a super-2 number, since 2×618879238² = 766023022454921288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 1024333 + ... + 1024936.

It is an arithmetic number, because the mean of its divisors is an integer number (116808390).

Almost surely, 2^618879238 is an apocalyptic number.

618879238 is a deficient number, since it is larger than the sum of its proper divisors (315587882).

618879238 is a wasteful number, since it uses less digits than its factorization.

618879238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2049422.

The product of its digits is 1161216, while the sum is 52.

The square root of 618879238 is about 24877.2835735737. The cubic root of 618879238 is about 852.1877841796.

The spelling of 618879238 in words is "six hundred eighteen million, eight hundred seventy-nine thousand, two hundred thirty-eight".