342991291 has 4 divisors (see below), whose sum is σ = 348110632. Its totient is φ = 337871952.

The previous prime is 342991279. The next prime is 342991307. The reversal of 342991291 is 192199243.

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

It is a cyclic number.

It is not a de Polignac number, because 342991291 - 2⁷ = 342991163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (342991241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2559570 + ... + 2559703.

It is an arithmetic number, because the mean of its divisors is an integer number (87027658).

Almost surely, 2^342991291 is an apocalyptic number.

342991291 is a deficient number, since it is larger than the sum of its proper divisors (5119341).

342991291 is an equidigital number, since it uses as much as digits as its factorization.

342991291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5119340.

The product of its digits is 34992, while the sum is 40.

The square root of 342991291 is about 18520.0240550600. The cubic root of 342991291 is about 699.9940754601.

The spelling of 342991291 in words is "three hundred forty-two million, nine hundred ninety-one thousand, two hundred ninety-one".