342405838 has 8 divisors (see below), whose sum is σ = 515852280. Its totient is φ = 170455080.

The previous prime is 342405809. The next prime is 342405893. The reversal of 342405838 is 838504243.

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

It is a junction number, because it is equal to n+sod(n) for n = 342405797 and 342405806.

It is a congruent number.

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, 373348 + ... + 374263.

It is an arithmetic number, because the mean of its divisors is an integer number (64481535).

Almost surely, 2^342405838 is an apocalyptic number.

342405838 is a deficient number, since it is larger than the sum of its proper divisors (173446442).

342405838 is a wasteful number, since it uses less digits than its factorization.

342405838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747842.

The product of its (nonzero) digits is 92160, while the sum is 37.

The square root of 342405838 is about 18504.2113584989. The cubic root of 342405838 is about 699.5955745512.

The spelling of 342405838 in words is "three hundred forty-two million, four hundred five thousand, eight hundred thirty-eight".