674168138 has 8 divisors (see below), whose sum is σ = 1155716832. Its totient is φ = 288929196.

The previous prime is 674168123. The next prime is 674168149. The reversal of 674168138 is 831861476.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24077420 + ... + 24077447.

It is an arithmetic number, because the mean of its divisors is an integer number (144464604).

Almost surely, 2^674168138 is an apocalyptic number.

674168138 is a deficient number, since it is larger than the sum of its proper divisors (481548694).

674168138 is a wasteful number, since it uses less digits than its factorization.

674168138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48154876.

The product of its digits is 193536, while the sum is 44.

The square root of 674168138 is about 25964.7479864527. The cubic root of 674168138 is about 876.8448208505.

The spelling of 674168138 in words is "six hundred seventy-four million, one hundred sixty-eight thousand, one hundred thirty-eight".