345030660 has 72 divisors (see below), whose sum is σ = 1127107800. Its totient is φ = 84930048.

The previous prime is 345030641. The next prime is 345030727. The reversal of 345030660 is 66030543.

It can be written as a sum of positive squares in 4 ways, for example, as 21678336 + 323352324 = 4656^2 + 17982^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71385 + ... + 76064.

It is an arithmetic number, because the mean of its divisors is an integer number (15654275).

Almost surely, 2^345030660 is an apocalyptic number.

345030660 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

345030660 is an abundant number, since it is smaller than the sum of its proper divisors (782077140).

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

345030660 is a wasteful number, since it uses less digits than its factorization.

345030660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147477 (or 147472 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 345030660 is about 18575.0009421265. Note that the first 3 decimals coincide. The cubic root of 345030660 is about 701.3786841920.

The spelling of 345030660 in words is "three hundred forty-five million, thirty thousand, six hundred sixty".