346627138 has 16 divisors (see below), whose sum is σ = 610839936. Its totient is φ = 145437840.

The previous prime is 346627133. The next prime is 346627159. The reversal of 346627138 is 831726643.

It is a super-4 number, since 4×346627138⁴ (a number of 35 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 346627138.

It is not an unprimeable number, because it can be changed into a prime (346627133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 605706 + ... + 606277.

It is an arithmetic number, because the mean of its divisors is an integer number (38177496).

Almost surely, 2^346627138 is an apocalyptic number.

346627138 is a deficient number, since it is larger than the sum of its proper divisors (264212798).

346627138 is a wasteful number, since it uses less digits than its factorization.

346627138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212009.

The product of its digits is 145152, while the sum is 40.

The square root of 346627138 is about 18617.9251797831. The cubic root of 346627138 is about 702.4587940353.

The spelling of 346627138 in words is "three hundred forty-six million, six hundred twenty-seven thousand, one hundred thirty-eight".