342758642 has 4 divisors (see below), whose sum is σ = 514137966. Its totient is φ = 171379320.

The previous prime is 342758629. The next prime is 342758657. The reversal of 342758642 is 246857243.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 342583081 + 175561 = 18509^2 + 419^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 342758642.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85689659 + ... + 85689662.

Almost surely, 2^342758642 is an apocalyptic number.

342758642 is a deficient number, since it is larger than the sum of its proper divisors (171379324).

342758642 is a wasteful number, since it uses less digits than its factorization.

342758642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171379323.

The product of its digits is 322560, while the sum is 41.

The square root of 342758642 is about 18513.7419772449. The cubic root of 342758642 is about 699.8357723578.

The spelling of 342758642 in words is "three hundred forty-two million, seven hundred fifty-eight thousand, six hundred forty-two".