344853921 has 8 divisors (see below), whose sum is σ = 459891904. Its totient is φ = 229859280.

The previous prime is 344853919. The next prime is 344853979. The reversal of 344853921 is 129358443.

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

It is not a de Polignac number, because 344853921 - 2¹ = 344853919 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 344853921.

It is not an unprimeable number, because it can be changed into a prime (344853121) 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, 21636 + ... + 34026.

It is an arithmetic number, because the mean of its divisors is an integer number (57486488).

Almost surely, 2^344853921 is an apocalyptic number.

It is an amenable number.

344853921 is a deficient number, since it is larger than the sum of its proper divisors (115037983).

344853921 is a wasteful number, since it uses less digits than its factorization.

344853921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21671.

The product of its digits is 103680, while the sum is 39.

The square root of 344853921 is about 18570.2428901724. The cubic root of 344853921 is about 701.2589053301.

The spelling of 344853921 in words is "three hundred forty-four million, eight hundred fifty-three thousand, nine hundred twenty-one".