345502305 has 24 divisors (see below), whose sum is σ = 634099752. Its totient is φ = 173428224.

The previous prime is 345502303. The next prime is 345502307. The reversal of 345502305 is 503205543.

It is an interprime number because it is at equal distance from previous prime (345502303) and next prime (345502307).

It can be written as a sum of positive squares in 4 ways, for example, as 40755456 + 304746849 = 6384^2 + 17457^2 .

It is not a de Polignac number, because 345502305 - 2¹ = 345502303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (345502303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 225054 + ... + 226583.

It is an arithmetic number, because the mean of its divisors is an integer number (26420823).

Almost surely, 2^345502305 is an apocalyptic number.

It is an amenable number.

345502305 is a deficient number, since it is larger than the sum of its proper divisors (288597447).

345502305 is a wasteful number, since it uses less digits than its factorization.

345502305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451665 (or 451662 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 345502305 is about 18587.6922989380. The cubic root of 345502305 is about 701.6981254965.

Adding to 345502305 its reverse (503205543), we get a palindrome (848707848).

The spelling of 345502305 in words is "three hundred forty-five million, five hundred two thousand, three hundred five".