345255570 has 96 divisors (see below), whose sum is σ = 983586240. Its totient is φ = 83329920.

The previous prime is 345255541. The next prime is 345255571. The reversal of 345255570 is 75552543.

345255570 is a `hidden beast` number, since 34 + 5 + 2 + 55 + 570 = 666.

345255570 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (345255571) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 273601 + ... + 274859.

It is an arithmetic number, because the mean of its divisors is an integer number (10245690).

Almost surely, 2^345255570 is an apocalyptic number.

345255570 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 345255570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (491793120).

345255570 is an abundant number, since it is smaller than the sum of its proper divisors (638330670).

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

345255570 is a wasteful number, since it uses less digits than its factorization.

345255570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1560 (or 1557 counting only the distinct ones).

The product of its (nonzero) digits is 105000, while the sum is 36.

The square root of 345255570 is about 18581.0540605209. The cubic root of 345255570 is about 701.5310501838.

The spelling of 345255570 in words is "three hundred forty-five million, two hundred fifty-five thousand, five hundred seventy".