444920939 has 8 divisors (see below), whose sum is σ = 447897600. Its totient is φ = 441951400.

The previous prime is 444920921. The next prime is 444920953. The reversal of 444920939 is 939029444.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-444920939 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 444920939.

It is not an unprimeable number, because it can be changed into a prime (444920909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184262 + ... + 186660.

It is an arithmetic number, because the mean of its divisors is an integer number (55987200).

Almost surely, 2^444920939 is an apocalyptic number.

444920939 is a deficient number, since it is larger than the sum of its proper divisors (2976661).

444920939 is a wasteful number, since it uses less digits than its factorization.

444920939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3561.

The product of its (nonzero) digits is 279936, while the sum is 44.

The square root of 444920939 is about 21093.1491010707. The cubic root of 444920939 is about 763.4154560150.

The spelling of 444920939 in words is "four hundred forty-four million, nine hundred twenty thousand, nine hundred thirty-nine".