345340342 has 4 divisors (see below), whose sum is σ = 518010516. Its totient is φ = 172670170.

The previous prime is 345340313. The next prime is 345340343. The reversal of 345340342 is 243043543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 243043543 = 17 ⋅14296679.

It is a self number, because there is not a number n which added to its sum of digits gives 345340342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345340343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86335084 + ... + 86335087.

It is an arithmetic number, because the mean of its divisors is an integer number (129502629).

Almost surely, 2^345340342 is an apocalyptic number.

345340342 is a deficient number, since it is larger than the sum of its proper divisors (172670174).

345340342 is a wasteful number, since it uses less digits than its factorization.

345340342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172670173.

The product of its (nonzero) digits is 17280, while the sum is 28.

The square root of 345340342 is about 18583.3350612854. The cubic root of 345340342 is about 701.5884620730.

Adding to 345340342 its reverse (243043543), we get a palindrome (588383885).

The spelling of 345340342 in words is "three hundred forty-five million, three hundred forty thousand, three hundred forty-two".