344621216 has 12 divisors (see below), whose sum is σ = 678473082. Its totient is φ = 172310592.

The previous prime is 344621209. The next prime is 344621227. The reversal of 344621216 is 612126443.

It can be written as a sum of positive squares in only one way, i.e., 236544400 + 108076816 = 15380^2 + 10396^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5384675 + ... + 5384738.

Almost surely, 2^344621216 is an apocalyptic number.

It is an amenable number.

344621216 is a deficient number, since it is larger than the sum of its proper divisors (333851866).

344621216 is a wasteful number, since it uses less digits than its factorization.

344621216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10769423 (or 10769415 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 344621216 is about 18563.9762981965. The cubic root of 344621216 is about 701.1011349786.

Adding to 344621216 its reverse (612126443), we get a palindrome (956747659).

The spelling of 344621216 in words is "three hundred forty-four million, six hundred twenty-one thousand, two hundred sixteen".