677342138 has 8 divisors (see below), whose sum is σ = 1108378080. Its totient is φ = 307882780.

The previous prime is 677342137. The next prime is 677342143. The reversal of 677342138 is 831243776.

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

It is a super-2 number, since 2×677342138² = 917584743820822088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 677342095 and 677342104.

It is not an unprimeable number, because it can be changed into a prime (677342137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15394118 + ... + 15394161.

It is an arithmetic number, because the mean of its divisors is an integer number (138547260).

Almost surely, 2^677342138 is an apocalyptic number.

677342138 is a deficient number, since it is larger than the sum of its proper divisors (431035942).

677342138 is a wasteful number, since it uses less digits than its factorization.

677342138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30788292.

The product of its digits is 169344, while the sum is 41.

The square root of 677342138 is about 26025.7975478178. The cubic root of 677342138 is about 878.2187358776.

The spelling of 677342138 in words is "six hundred seventy-seven million, three hundred forty-two thousand, one hundred thirty-eight".