342756138 has 16 divisors (see below), whose sum is σ = 686044800. Its totient is φ = 114163296.

The previous prime is 342756131. The next prime is 342756149. The reversal of 342756138 is 831657243.

It is a junction number, because it is equal to n+sod(n) for n = 342756096 and 342756105.

It is not an unprimeable number, because it can be changed into a prime (342756131) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 13563 + ... + 29486.

It is an arithmetic number, because the mean of its divisors is an integer number (42877800).

Almost surely, 2^342756138 is an apocalyptic number.

342756138 is an abundant number, since it is smaller than the sum of its proper divisors (343288662).

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

342756138 is a wasteful number, since it uses less digits than its factorization.

342756138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44381.

The product of its digits is 120960, while the sum is 39.

The square root of 342756138 is about 18513.6743516785. The cubic root of 342756138 is about 699.8340681527.

The spelling of 342756138 in words is "three hundred forty-two million, seven hundred fifty-six thousand, one hundred thirty-eight".