345765906 has 24 divisors (see below), whose sum is σ = 749686860. Its totient is φ = 115174176.

The previous prime is 345765863. The next prime is 345765947. The reversal of 345765906 is 609567543.

345765906 is a `hidden beast` number, since 3 + 4 + 57 + 6 + 590 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 345625281 + 140625 = 18591^2 + 375^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23080 + ... + 34988.

Almost surely, 2^345765906 is an apocalyptic number.

345765906 is an abundant number, since it is smaller than the sum of its proper divisors (403920954).

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

345765906 is a wasteful number, since it uses less digits than its factorization.

345765906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13530 (or 13527 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 45.

The square root of 345765906 is about 18594.7816873444. The cubic root of 345765906 is about 701.8765336714.

The spelling of 345765906 in words is "three hundred forty-five million, seven hundred sixty-five thousand, nine hundred six".