345328128 has 60 divisors (see below), whose sum is σ = 996653658. Its totient is φ = 115107840.

The previous prime is 345328037. The next prime is 345328133. The reversal of 345328128 is 821823543.

It can be written as a sum of positive squares in only one way, i.e., 330948864 + 14379264 = 18192^2 + 3792^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 345328092 and 345328101.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32863 + ... + 42078.

Almost surely, 2^345328128 is an apocalyptic number.

It is an amenable number.

345328128 is an abundant number, since it is smaller than the sum of its proper divisors (651325530).

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

345328128 is an equidigital number, since it uses as much as digits as its factorization.

345328128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74965 (or 74946 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 345328128 is about 18583.0064306075. The cubic root of 345328128 is about 701.5801907133.

The spelling of 345328128 in words is "three hundred forty-five million, three hundred twenty-eight thousand, one hundred twenty-eight".