344536340 has 12 divisors (see below), whose sum is σ = 723526356. Its totient is φ = 137814528.

The previous prime is 344536321. The next prime is 344536349. The reversal of 344536340 is 43635443.

It can be written as a sum of positive squares in 2 ways, for example, as 190329616 + 154206724 = 13796^2 + 12418^2 .

It is a junction number, because it is equal to n+sod(n) for n = 344536297 and 344536306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344536349) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 8613389 + ... + 8613428.

It is an arithmetic number, because the mean of its divisors is an integer number (60293863).

Almost surely, 2^344536340 is an apocalyptic number.

It is an amenable number.

344536340 is an abundant number, since it is smaller than the sum of its proper divisors (378990016).

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

344536340 is a wasteful number, since it uses less digits than its factorization.

344536340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17226826 (or 17226824 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 32.

The square root of 344536340 is about 18561.6901170125. The cubic root of 344536340 is about 701.0435727015.

The spelling of 344536340 in words is "three hundred forty-four million, five hundred thirty-six thousand, three hundred forty".