345939668 has 6 divisors (see below), whose sum is σ = 605394426. Its totient is φ = 172969832.

The previous prime is 345939653. The next prime is 345939679. The reversal of 345939668 is 866939543.

It can be written as a sum of positive squares in only one way, i.e., 283181584 + 62758084 = 16828^2 + 7922^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43242455 + ... + 43242462.

It is an arithmetic number, because the mean of its divisors is an integer number (100899071).

Almost surely, 2^345939668 is an apocalyptic number.

It is an amenable number.

345939668 is a deficient number, since it is larger than the sum of its proper divisors (259454758).

345939668 is a wasteful number, since it uses less digits than its factorization.

345939668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86484921 (or 86484919 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 53.

The square root of 345939668 is about 18599.4534328297. The cubic root of 345939668 is about 701.9940882017.

The spelling of 345939668 in words is "three hundred forty-five million, nine hundred thirty-nine thousand, six hundred sixty-eight".