345643060 has 108 divisors (see below), whose sum is σ = 892047492. Its totient is φ = 112154112.

The previous prime is 345643049. The next prime is 345643097. The reversal of 345643060 is 60346543.

It can be written as a sum of positive squares in 2 ways, for example, as 238023184 + 107619876 = 15428^2 + 10374^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 353292 + ... + 354268.

It is an arithmetic number, because the mean of its divisors is an integer number (8259699).

Almost surely, 2^345643060 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 345643060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (446023746).

345643060 is an abundant number, since it is smaller than the sum of its proper divisors (546404432).

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

345643060 is a wasteful number, since it uses less digits than its factorization.

345643060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038 (or 1010 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 345643060 is about 18591.4781553270. The cubic root of 345643060 is about 701.7934013783.

The spelling of 345643060 in words is "three hundred forty-five million, six hundred forty-three thousand, sixty".