445418 has 12 divisors (see below), whose sum is σ = 700098. Its totient is φ = 212520.

The previous prime is 445363. The next prime is 445427. The reversal of 445418 is 814544.

It can be written as a sum of positive squares in only one way, i.e., 444889 + 529 = 667^2 + 23^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 848 + ... + 1268.

2⁴⁴⁵⁴¹⁸ is an apocalyptic number.

445418 is a deficient number, since it is larger than the sum of its proper divisors (254680).

445418 is a wasteful number, since it uses less digits than its factorization.

445418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469 (or 446 counting only the distinct ones).

The product of its digits is 2560, while the sum is 26.

The square root of 445418 is about 667.3964339132. The cubic root of 445418 is about 76.3699643454.

The spelling of 445418 in words is "four hundred forty-five thousand, four hundred eighteen".