344632321 has 6 divisors (see below), whose sum is σ = 378810866. Its totient is φ = 313302000.

The previous prime is 344632303. The next prime is 344632339. The reversal of 344632321 is 123236443.

It is an interprime number because it is at equal distance from previous prime (344632303) and next prime (344632339).

It can be written as a sum of positive squares in only one way, i.e., 281031696 + 63600625 = 16764^2 + 7975^2 .

It is not a de Polignac number, because 344632321 - 2⁵ = 344632289 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 344632321.

It is not an unprimeable number, because it can be changed into a prime (344632021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1423980 + ... + 1424221.

Almost surely, 2^344632321 is an apocalyptic number.

It is an amenable number.

344632321 is a deficient number, since it is larger than the sum of its proper divisors (34178545).

344632321 is a wasteful number, since it uses less digits than its factorization.

344632321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2848223 (or 2848212 counting only the distinct ones).

The product of its digits is 10368, while the sum is 28.

The square root of 344632321 is about 18564.2753965782. The cubic root of 344632321 is about 701.1086656085.

Adding to 344632321 its reverse (123236443), we get a palindrome (467868764).

The spelling of 344632321 in words is "three hundred forty-four million, six hundred thirty-two thousand, three hundred twenty-one".