445388 has 6 divisors (see below), whose sum is σ = 779436. Its totient is φ = 222692.

The previous prime is 445363. The next prime is 445427. The reversal of 445388 is 883544.

It is an unprimeable number.

445388 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 55670 + ... + 55677.

It is an arithmetic number, because the mean of its divisors is an integer number (129906).

2⁴⁴⁵³⁸⁸ is an apocalyptic number.

It is an amenable number.

445388 is a deficient number, since it is larger than the sum of its proper divisors (334048).

445388 is a wasteful number, since it uses less digits than its factorization.

445388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111351 (or 111349 counting only the distinct ones).

The product of its digits is 15360, while the sum is 32.

The square root of 445388 is about 667.3739581374. The cubic root of 445388 is about 76.3682497385.

The spelling of 445388 in words is "four hundred forty-five thousand, three hundred eighty-eight".