342691438 has 4 divisors (see below), whose sum is σ = 514037160. Its totient is φ = 171345718.

The previous prime is 342691409. The next prime is 342691441. The reversal of 342691438 is 834196243.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 834196243 = 24917 ⋅33479.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 342691438.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85672858 + ... + 85672861.

It is an arithmetic number, because the mean of its divisors is an integer number (128509290).

Almost surely, 2^342691438 is an apocalyptic number.

342691438 is a deficient number, since it is larger than the sum of its proper divisors (171345722).

342691438 is a wasteful number, since it uses less digits than its factorization.

342691438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171345721.

The product of its digits is 124416, while the sum is 40.

The square root of 342691438 is about 18511.9269121288. The cubic root of 342691438 is about 699.7900309024.

It can be divided in two parts, 3426 and 91438, that added together give a square (94864 = 308²).

The spelling of 342691438 in words is "three hundred forty-two million, six hundred ninety-one thousand, four hundred thirty-eight".