345840294 has 16 divisors (see below), whose sum is σ = 699453360. Its totient is φ = 113984640.

The previous prime is 345840281. The next prime is 345840301. The reversal of 345840294 is 492048543.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323287 + ... + 324354.

It is an arithmetic number, because the mean of its divisors is an integer number (43715835).

Almost surely, 2^345840294 is an apocalyptic number.

345840294 is an abundant number, since it is smaller than the sum of its proper divisors (353613066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

345840294 is a wasteful number, since it uses less digits than its factorization.

345840294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647735.

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 345840294 is about 18596.7818183685. The cubic root of 345840294 is about 701.9268639159.

The spelling of 345840294 in words is "three hundred forty-five million, eight hundred forty thousand, two hundred ninety-four".