345289660 has 48 divisors (see below), whose sum is σ = 789616800. Its totient is φ = 126330624.

The previous prime is 345289657. The next prime is 345289667. The reversal of 345289660 is 66982543.

345289660 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

345289660 is strictly pandigital in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345289667) 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, 4647 + ... + 26686.

It is an arithmetic number, because the mean of its divisors is an integer number (16450350).

Almost surely, 2^345289660 is an apocalyptic number.

It is an amenable number.

345289660 is an abundant number, since it is smaller than the sum of its proper divisors (444327140).

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

345289660 is a wasteful number, since it uses less digits than its factorization.

345289660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31390 (or 31388 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 43.

The square root of 345289660 is about 18581.9713701211. The cubic root of 345289660 is about 701.5541387869.

The spelling of 345289660 in words is "three hundred forty-five million, two hundred eighty-nine thousand, six hundred sixty".