345807645 has 16 divisors (see below), whose sum is σ = 577348992. Its totient is φ = 176411840.

The previous prime is 345807641. The next prime is 345807647. The reversal of 345807645 is 546708543.

It is not a de Polignac number, because 345807645 - 2² = 345807641 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 345807597 and 345807606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345807641) 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, 500826 + ... + 501515.

It is an arithmetic number, because the mean of its divisors is an integer number (36084312).

Almost surely, 2^345807645 is an apocalyptic number.

It is an amenable number.

345807645 is a deficient number, since it is larger than the sum of its proper divisors (231541347).

345807645 is a wasteful number, since it uses less digits than its factorization.

345807645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002372.

The product of its (nonzero) digits is 403200, while the sum is 42.

The square root of 345807645 is about 18595.9039844800. The cubic root of 345807645 is about 701.9047747881.

The spelling of 345807645 in words is "three hundred forty-five million, eight hundred seven thousand, six hundred forty-five".