444366 has 40 divisors (see below), whose sum is σ = 1077384. Its totient is φ = 136080.

The previous prime is 444349. The next prime is 444401. The reversal of 444366 is 663444.

It is a happy number.

It is a super-2 number, since 2×444366² = 394922283912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

444366 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2001 + ... + 2211.

2⁴⁴⁴³⁶⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 444366, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (538692).

444366 is an abundant number, since it is smaller than the sum of its proper divisors (633018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

444366 is a wasteful number, since it uses less digits than its factorization.

444366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238 (or 229 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 444366 is about 666.6078307371. The cubic root of 444366 is about 76.3097927491.

The spelling of 444366 in words is "four hundred forty-four thousand, three hundred sixty-six".