445672 has 32 divisors (see below), whose sum is σ = 923400. Its totient is φ = 200704.

The previous prime is 445657. The next prime is 445691. The reversal of 445672 is 276544.

It can be written as a sum of positive squares in 4 ways, for example, as 320356 + 125316 = 566^2 + 354^2 .

It is a d-powerful number, because it can be written as 4⁸ + 4⁹ + 6³ + 5³ + 7⁶ + 2 .

It is a self number, because there is not a number n which added to its sum of digits gives 445672.

It is an unprimeable number.

445672 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 7 ways as a sum of consecutive naturals, for example, 3888 + ... + 4000.

2⁴⁴⁵⁶⁷² is an apocalyptic number.

It is an amenable number.

445672 is an abundant number, since it is smaller than the sum of its proper divisors (477728).

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

445672 is a wasteful number, since it uses less digits than its factorization.

445672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165 (or 161 counting only the distinct ones).

The product of its digits is 6720, while the sum is 28.

The square root of 445672 is about 667.5866984894. The cubic root of 445672 is about 76.3844782663.

The spelling of 445672 in words is "four hundred forty-five thousand, six hundred seventy-two".