444401247 has 8 divisors (see below), whose sum is σ = 594722560. Its totient is φ = 295173720.

The previous prime is 444401183. The next prime is 444401257. The reversal of 444401247 is 742104444.

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

It is not a de Polignac number, because 444401247 - 2⁶ = 444401183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444401257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272497 + ... + 274122.

It is an arithmetic number, because the mean of its divisors is an integer number (74340320).

Almost surely, 2^444401247 is an apocalyptic number.

444401247 is a deficient number, since it is larger than the sum of its proper divisors (150321313).

444401247 is a wasteful number, since it uses less digits than its factorization.

444401247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546893.

The product of its (nonzero) digits is 14336, while the sum is 30.

The square root of 444401247 is about 21080.8265255421. The cubic root of 444401247 is about 763.1181032029.

The spelling of 444401247 in words is "four hundred forty-four million, four hundred one thousand, two hundred forty-seven".