345818765 has 16 divisors (see below), whose sum is σ = 436579200. Its totient is φ = 262581312.

The previous prime is 345818747. The next prime is 345818779. The reversal of 345818765 is 567818543.

It is not a de Polignac number, because 345818765 - 2⁶ = 345818701 is a prime.

It is a super-2 number, since 2×345818765² = 239181236452250450, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11657 + ... + 28766.

It is an arithmetic number, because the mean of its divisors is an integer number (27286200).

Almost surely, 2^345818765 is an apocalyptic number.

It is an amenable number.

345818765 is a deficient number, since it is larger than the sum of its proper divisors (90760435).

345818765 is a wasteful number, since it uses less digits than its factorization.

345818765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40516.

The product of its digits is 806400, while the sum is 47.

The square root of 345818765 is about 18596.2029726501. The cubic root of 345818765 is about 701.9122983324.

The spelling of 345818765 in words is "three hundred forty-five million, eight hundred eighteen thousand, seven hundred sixty-five".