345344278 has 8 divisors (see below), whose sum is σ = 534726720. Its totient is φ = 167102040.

The previous prime is 345344269. The next prime is 345344281. The reversal of 345344278 is 872443543.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 345344278.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2784973 + ... + 2785096.

It is an arithmetic number, because the mean of its divisors is an integer number (66840840).

Almost surely, 2^345344278 is an apocalyptic number.

345344278 is a deficient number, since it is larger than the sum of its proper divisors (189382442).

345344278 is a wasteful number, since it uses less digits than its factorization.

345344278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5570102.

The product of its digits is 322560, while the sum is 40.

The square root of 345344278 is about 18583.4409623191. The cubic root of 345344278 is about 701.5911275031.

The spelling of 345344278 in words is "three hundred forty-five million, three hundred forty-four thousand, two hundred seventy-eight".