445426 has 4 divisors (see below), whose sum is σ = 668142. Its totient is φ = 222712.

The previous prime is 445363. The next prime is 445427. The reversal of 445426 is 624544.

445426 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 286225 + 159201 = 535^2 + 399^2 .

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 445426.

It is not an unprimeable number, because it can be changed into a prime (445427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111355 + ... + 111358.

2⁴⁴⁵⁴²⁶ is an apocalyptic number.

445426 is a deficient number, since it is larger than the sum of its proper divisors (222716).

445426 is a wasteful number, since it uses less digits than its factorization.

445426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222715.

The product of its digits is 3840, while the sum is 25.

The square root of 445426 is about 667.4024273255. The cubic root of 445426 is about 76.3704215609.

The spelling of 445426 in words is "four hundred forty-five thousand, four hundred twenty-six".