345340645 has 8 divisors (see below), whose sum is σ = 446286456. Its totient is φ = 255020736.

The previous prime is 345340603. The next prime is 345340649. The reversal of 345340645 is 546043543.

It can be written as a sum of positive squares in 4 ways, for example, as 33535681 + 311804964 = 5791^2 + 17658^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 345340645 - 2¹¹ = 345338597 is a prime.

It is a super-2 number, since 2×345340645² = 238520322178032050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 345340645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345340649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2656402 + ... + 2656531.

It is an arithmetic number, because the mean of its divisors is an integer number (55785807).

Almost surely, 2^345340645 is an apocalyptic number.

It is an amenable number.

345340645 is a deficient number, since it is larger than the sum of its proper divisors (100945811).

345340645 is a wasteful number, since it uses less digits than its factorization.

345340645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5312951.

The product of its (nonzero) digits is 86400, while the sum is 34.

The square root of 345340645 is about 18583.3432137492. The cubic root of 345340645 is about 701.5886672631.

The spelling of 345340645 in words is "three hundred forty-five million, three hundred forty thousand, six hundred forty-five".