444921368 has 8 divisors (see below), whose sum is σ = 834227580. Its totient is φ = 222460680.

The previous prime is 444921359. The next prime is 444921371. The reversal of 444921368 is 863129444.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27807578 + ... + 27807593.

Almost surely, 2^444921368 is an apocalyptic number.

It is an amenable number.

444921368 is a deficient number, since it is larger than the sum of its proper divisors (389306212).

444921368 is a wasteful number, since it uses less digits than its factorization.

444921368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55615177 (or 55615173 counting only the distinct ones).

The product of its digits is 165888, while the sum is 41.

The square root of 444921368 is about 21093.1592702468. The cubic root of 444921368 is about 763.4157013808.

The spelling of 444921368 in words is "four hundred forty-four million, nine hundred twenty-one thousand, three hundred sixty-eight".