445572 has 18 divisors (see below), whose sum is σ = 1126398. Its totient is φ = 148512.

The previous prime is 445567. The next prime is 445573. The reversal of 445572 is 275544.

It can be written as a sum of positive squares in only one way, i.e., 298116 + 147456 = 546^2 + 384^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-3 number, since 3×445572³ = 265384118633367744, which contains 333 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 445572.

It is not an unprimeable number, because it can be changed into a prime (445573) by changing a digit.

445572 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 5 ways as a sum of consecutive naturals, for example, 6153 + ... + 6224.

2⁴⁴⁵⁵⁷² is an apocalyptic number.

It is an amenable number.

445572 is an abundant number, since it is smaller than the sum of its proper divisors (680826).

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

445572 is a wasteful number, since it uses less digits than its factorization.

445572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12387 (or 12382 counting only the distinct ones).

The product of its digits is 5600, while the sum is 27.

The square root of 445572 is about 667.5117976486. The cubic root of 445572 is about 76.3787647825.

The spelling of 445572 in words is "four hundred forty-five thousand, five hundred seventy-two".