344012216 has 8 divisors (see below), whose sum is σ = 645022920. Its totient is φ = 172006104.

The previous prime is 344012213. The next prime is 344012257. The reversal of 344012216 is 612210443.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 344012191 and 344012200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344012213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21500756 + ... + 21500771.

It is an arithmetic number, because the mean of its divisors is an integer number (80627865).

Almost surely, 2^344012216 is an apocalyptic number.

It is an amenable number.

344012216 is a deficient number, since it is larger than the sum of its proper divisors (301010704).

344012216 is a wasteful number, since it uses less digits than its factorization.

344012216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43001533 (or 43001529 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 344012216 is about 18547.5663093571. The cubic root of 344012216 is about 700.6879060704.

Adding to 344012216 its reverse (612210443), we get a palindrome (956222659).

The spelling of 344012216 in words is "three hundred forty-four million, twelve thousand, two hundred sixteen".