345778268 has 12 divisors (see below), whose sum is σ = 660122232. Its totient is φ = 157171920.

The previous prime is 345778253. The next prime is 345778271. The reversal of 345778268 is 862877543.

It is a super-2 number, since 2×345778268² = 239125221242159648, which contains 22 as substring.

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, 3929255 + ... + 3929342.

It is an arithmetic number, because the mean of its divisors is an integer number (55010186).

Almost surely, 2^345778268 is an apocalyptic number.

It is an amenable number.

345778268 is a deficient number, since it is larger than the sum of its proper divisors (314343964).

345778268 is a wasteful number, since it uses less digits than its factorization.

345778268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7858612 (or 7858610 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 50.

The square root of 345778268 is about 18595.1140894591. The cubic root of 345778268 is about 701.8848981883.

The spelling of 345778268 in words is "three hundred forty-five million, seven hundred seventy-eight thousand, two hundred sixty-eight".