345489660 has 36 divisors (see below), whose sum is σ = 1047985848. Its totient is φ = 92130528.

The previous prime is 345489659. The next prime is 345489667. The reversal of 345489660 is 66984543.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345489667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 959514 + ... + 959873.

It is an arithmetic number, because the mean of its divisors is an integer number (29110718).

Almost surely, 2^345489660 is an apocalyptic number.

345489660 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

345489660 is an abundant number, since it is smaller than the sum of its proper divisors (702496188).

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

345489660 is a wasteful number, since it uses less digits than its factorization.

345489660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1919402 (or 1919397 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The square root of 345489660 is about 18587.3521513959. The cubic root of 345489660 is about 701.6895649351.

The spelling of 345489660 in words is "three hundred forty-five million, four hundred eighty-nine thousand, six hundred sixty".