345663340 has 48 divisors (see below), whose sum is σ = 793414944. Its totient is φ = 125452800.

The previous prime is 345663323. The next prime is 345663349. The reversal of 345663340 is 43366543.

It is a junction number, because it is equal to n+sod(n) for n = 345663296 and 345663305.

It is not an unprimeable number, because it can be changed into a prime (345663349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144232 + ... + 146608.

It is an arithmetic number, because the mean of its divisors is an integer number (16529478).

Almost surely, 2^345663340 is an apocalyptic number.

It is an amenable number.

345663340 is an abundant number, since it is smaller than the sum of its proper divisors (447751604).

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

345663340 is a wasteful number, since it uses less digits than its factorization.

345663340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3058 (or 3056 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 34.

The square root of 345663340 is about 18592.0235585049. The cubic root of 345663340 is about 701.8071266086.

The spelling of 345663340 in words is "three hundred forty-five million, six hundred sixty-three thousand, three hundred forty".