445944 has 32 divisors (see below), whose sum is σ = 1181520. Its totient is φ = 139776.

The previous prime is 445943. The next prime is 445967. The reversal of 445944 is 449544.

It is a super-2 number, since 2×445944² = 397732102272, which contains 22 as substring.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445943) 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, 139 + ... + 954.

2⁴⁴⁵⁹⁴⁴ is an apocalyptic number.

It is an amenable number.

445944 is an abundant number, since it is smaller than the sum of its proper divisors (735576).

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

445944 is a wasteful number, since it uses less digits than its factorization.

445944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119 (or 1115 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 445944 is about 667.7903862740. The cubic root of 445944 is about 76.4000146195.

Subtracting 445944 from its reverse (449544), we obtain a square (3600 = 60²).

The spelling of 445944 in words is "four hundred forty-five thousand, nine hundred forty-four".