444221373 has 16 divisors (see below), whose sum is σ = 627621696. Its totient is φ = 278511360.

The previous prime is 444221353. The next prime is 444221381. The reversal of 444221373 is 373122444.

It is not a de Polignac number, because 444221373 - 2⁵ = 444221341 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 444221373.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444221353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86290 + ... + 91292.

It is an arithmetic number, because the mean of its divisors is an integer number (39226356).

Almost surely, 2^444221373 is an apocalyptic number.

It is an amenable number.

444221373 is a deficient number, since it is larger than the sum of its proper divisors (183400323).

444221373 is a wasteful number, since it uses less digits than its factorization.

444221373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6764.

The product of its digits is 16128, while the sum is 30.

The square root of 444221373 is about 21076.5597999294. The cubic root of 444221373 is about 763.0151304724.

The spelling of 444221373 in words is "four hundred forty-four million, two hundred twenty-one thousand, three hundred seventy-three".