345239622 has 144 divisors (see below), whose sum is σ = 957385728. Its totient is φ = 87946560.

The previous prime is 345239617. The next prime is 345239641. The reversal of 345239622 is 226932543.

It is a happy number.

345239622 is a `hidden beast` number, since 3 + 4 + 5 + 23 + 9 + 622 = 666.

It is a congruent number.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 659853 + ... + 660375.

It is an arithmetic number, because the mean of its divisors is an integer number (6648512).

Almost surely, 2^345239622 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 345239622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (478692864).

345239622 is an abundant number, since it is smaller than the sum of its proper divisors (612146106).

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

345239622 is a wasteful number, since it uses less digits than its factorization.

345239622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595 (or 579 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 345239622 is about 18580.6249087591. The cubic root of 345239622 is about 701.5202483408.

The spelling of 345239622 in words is "three hundred forty-five million, two hundred thirty-nine thousand, six hundred twenty-two".