344621768 has 8 divisors (see below), whose sum is σ = 646165830. Its totient is φ = 172310880.

The previous prime is 344621729. The next prime is 344621777. The reversal of 344621768 is 867126443.

It can be written as a sum of positive squares in only one way, i.e., 343657444 + 964324 = 18538^2 + 982^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21538853 + ... + 21538868.

Almost surely, 2^344621768 is an apocalyptic number.

It is an amenable number.

344621768 is a deficient number, since it is larger than the sum of its proper divisors (301544062).

344621768 is a wasteful number, since it uses less digits than its factorization.

344621768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43077727 (or 43077723 counting only the distinct ones).

The product of its digits is 193536, while the sum is 41.

The square root of 344621768 is about 18563.9911656949. The cubic root of 344621768 is about 701.1015093100.

The spelling of 344621768 in words is "three hundred forty-four million, six hundred twenty-one thousand, seven hundred sixty-eight".