342707838 has 32 divisors (see below), whose sum is σ = 767940480. Its totient is φ = 101043360.

The previous prime is 342707803. The next prime is 342707863. The reversal of 342707838 is 838707243.

It is a super-3 number, since 3×342707838³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 342707838.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67728 + ... + 72611.

It is an arithmetic number, because the mean of its divisors is an integer number (23998140).

Almost surely, 2^342707838 is an apocalyptic number.

342707838 is an abundant number, since it is smaller than the sum of its proper divisors (425232642).

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

342707838 is a wasteful number, since it uses less digits than its factorization.

342707838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140392.

The product of its (nonzero) digits is 225792, while the sum is 42.

The square root of 342707838 is about 18512.3698644987. The cubic root of 342707838 is about 699.8011938828.

The spelling of 342707838 in words is "three hundred forty-two million, seven hundred seven thousand, eight hundred thirty-eight".