344612643 has 8 divisors (see below), whose sum is σ = 459570768. Its totient is φ = 229698144.

The previous prime is 344612623. The next prime is 344612651. The reversal of 344612643 is 346216443.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-344612643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (344612603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20221 + ... + 33137.

It is an arithmetic number, because the mean of its divisors is an integer number (57446346).

Almost surely, 2^344612643 is an apocalyptic number.

344612643 is a deficient number, since it is larger than the sum of its proper divisors (114958125).

344612643 is a wasteful number, since it uses less digits than its factorization.

344612643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21813.

The product of its digits is 41472, while the sum is 33.

The square root of 344612643 is about 18563.7453925656. The cubic root of 344612643 is about 701.0953212624.

The spelling of 344612643 in words is "three hundred forty-four million, six hundred twelve thousand, six hundred forty-three".