445598 has 4 divisors (see below), whose sum is σ = 668400. Its totient is φ = 222798.

The previous prime is 445597. The next prime is 445619. The reversal of 445598 is 895544.

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

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 445598.

It is not an unprimeable number, because it can be changed into a prime (445597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111398 + ... + 111401.

It is an arithmetic number, because the mean of its divisors is an integer number (167100).

2⁴⁴⁵⁵⁹⁸ is an apocalyptic number.

445598 is a deficient number, since it is larger than the sum of its proper divisors (222802).

445598 is a wasteful number, since it uses less digits than its factorization.

445598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222801.

The product of its digits is 28800, while the sum is 35.

The square root of 445598 is about 667.5312726757. The cubic root of 445598 is about 76.3802503706.

The spelling of 445598 in words is "four hundred forty-five thousand, five hundred ninety-eight".