345441320 has 64 divisors (see below), whose sum is σ = 890023680. Its totient is φ = 118204416.

The previous prime is 345441289. The next prime is 345441323. The reversal of 345441320 is 23144543.

It is a self number, because there is not a number n which added to its sum of digits gives 345441320.

It is not an unprimeable number, because it can be changed into a prime (345441323) 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, 202712 + ... + 204408.

It is an arithmetic number, because the mean of its divisors is an integer number (13906620).

Almost surely, 2^345441320 is an apocalyptic number.

It is an amenable number.

345441320 is an abundant number, since it is smaller than the sum of its proper divisors (544582360).

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

345441320 is a wasteful number, since it uses less digits than its factorization.

345441320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2442 (or 2438 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 345441320 is about 18586.0517593167. The cubic root of 345441320 is about 701.6568372256.

Adding to 345441320 its reverse (23144543), we get a palindrome (368585863).

The spelling of 345441320 in words is "three hundred forty-five million, four hundred forty-one thousand, three hundred twenty".