345240612 has 72 divisors (see below), whose sum is σ = 887959800. Its totient is φ = 113084928.

The previous prime is 345240559. The next prime is 345240619. The reversal of 345240612 is 216042543.

345240612 is a `hidden beast` number, since 3 + 4 + 5 + 2 + 40 + 612 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2842596 + 342398016 = 1686^2 + 18504^2 .

It is not an unprimeable number, because it can be changed into a prime (345240619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 887314 + ... + 887702.

It is an arithmetic number, because the mean of its divisors is an integer number (12332775).

Almost surely, 2^345240612 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 345240612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (443979900).

345240612 is an abundant number, since it is smaller than the sum of its proper divisors (542719188).

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

345240612 is a wasteful number, since it uses less digits than its factorization.

345240612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765 (or 760 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 345240612 is about 18580.6515493941. The cubic root of 345240612 is about 701.5209188938.

The spelling of 345240612 in words is "three hundred forty-five million, two hundred forty thousand, six hundred twelve".