445432 has 16 divisors (see below), whose sum is σ = 899640. Its totient is φ = 205536.

The previous prime is 445427. The next prime is 445433. The reversal of 445432 is 234544.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445433) by changing a digit.

445432 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, 2038 + ... + 2245.

2⁴⁴⁵⁴³² is an apocalyptic number.

It is an amenable number.

445432 is an abundant number, since it is smaller than the sum of its proper divisors (454208).

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

445432 is a wasteful number, since it uses less digits than its factorization.

445432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4302 (or 4298 counting only the distinct ones).

The product of its digits is 1920, while the sum is 22.

The square root of 445432 is about 667.4069223495. The cubic root of 445432 is about 76.3707644689.

Adding to 445432 its reverse (234544), we get a palindrome (679976).

It can be divided in two parts, 44 and 5432, that added together give a square (5476 = 74²).

The spelling of 445432 in words is "four hundred forty-five thousand, four hundred thirty-two".