344163321 has 18 divisors (see below), whose sum is σ = 524671290. Its totient is φ = 217364256.

The previous prime is 344163319. The next prime is 344163353. The reversal of 344163321 is 123361443.

344163321 is a `hidden beast` number, since 3 + 4 + 4 + 1 + 633 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 338964921 + 5198400 = 18411^2 + 2280^2 .

It is not a de Polignac number, because 344163321 - 2¹ = 344163319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (344163301) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 49716 + ... + 56213.

It is an arithmetic number, because the mean of its divisors is an integer number (29148405).

Almost surely, 2^344163321 is an apocalyptic number.

It is an amenable number.

344163321 is a deficient number, since it is larger than the sum of its proper divisors (180507969).

344163321 is a wasteful number, since it uses less digits than its factorization.

344163321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105973 (or 105951 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 344163321 is about 18551.6393076192. The cubic root of 344163321 is about 700.7904818346.

The spelling of 344163321 in words is "three hundred forty-four million, one hundred sixty-three thousand, three hundred twenty-one".