342758431 has 4 divisors (see below), whose sum is σ = 343161112. Its totient is φ = 342355752.

The previous prime is 342758419. The next prime is 342758441. The reversal of 342758431 is 134857243.

It is a happy number.

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 342758431 - 2⁷ = 342758303 is a prime.

It is a super-4 number, since 4×342758431⁴ (a number of 35 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342758441) 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, 200061 + ... + 201766.

It is an arithmetic number, because the mean of its divisors is an integer number (85790278).

Almost surely, 2^342758431 is an apocalyptic number.

342758431 is a deficient number, since it is larger than the sum of its proper divisors (402681).

342758431 is an equidigital number, since it uses as much as digits as its factorization.

342758431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402680.

The product of its digits is 80640, while the sum is 37.

The square root of 342758431 is about 18513.7362787742. The cubic root of 342758431 is about 699.8356287530.

The spelling of 342758431 in words is "three hundred forty-two million, seven hundred fifty-eight thousand, four hundred thirty-one".