345666356 has 24 divisors (see below), whose sum is σ = 721392000. Its totient is φ = 141701472.

The previous prime is 345666353. The next prime is 345666397. The reversal of 345666356 is 653666543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345666353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267731 + ... + 269018.

It is an arithmetic number, because the mean of its divisors is an integer number (30058000).

Almost surely, 2^345666356 is an apocalyptic number.

It is an amenable number.

345666356 is an abundant number, since it is smaller than the sum of its proper divisors (375725644).

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

345666356 is a wasteful number, since it uses less digits than its factorization.

345666356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536783 (or 536781 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 44.

The square root of 345666356 is about 18592.1046683801. The cubic root of 345666356 is about 701.8091677508.

The spelling of 345666356 in words is "three hundred forty-five million, six hundred sixty-six thousand, three hundred fifty-six".