444536 has 16 divisors (see below), whose sum is σ = 840840. Its totient is φ = 220320.

The previous prime is 444529. The next prime is 444539. The reversal of 444536 is 635444.

It is a super-2 number, since 2×444536² = 395224510592, which contains 22 as substring.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 444536.

It is not an unprimeable number, because it can be changed into a prime (444539) by changing a digit.

444536 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 3 ways as a sum of consecutive naturals, for example, 1295 + ... + 1601.

2⁴⁴⁴⁵³⁶ is an apocalyptic number.

It is an amenable number.

444536 is a deficient number, since it is larger than the sum of its proper divisors (396304).

444536 is a wasteful number, since it uses less digits than its factorization.

444536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494 (or 490 counting only the distinct ones).

The product of its digits is 5760, while the sum is 26.

The square root of 444536 is about 666.7353297974. The cubic root of 444536 is about 76.3195227245.

The spelling of 444536 in words is "four hundred forty-four thousand, five hundred thirty-six".