445384 has 8 divisors (see below), whose sum is σ = 835110. Its totient is φ = 222688.

The previous prime is 445363. The next prime is 445427. The reversal of 445384 is 483544.

It can be written as a sum of positive squares in only one way, i.e., 302500 + 142884 = 550^2 + 378^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

445384 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 as a sum of consecutive naturals, namely, 27829 + ... + 27844.

2⁴⁴⁵³⁸⁴ is an apocalyptic number.

It is an amenable number.

445384 is a deficient number, since it is larger than the sum of its proper divisors (389726).

445384 is a wasteful number, since it uses less digits than its factorization.

445384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55679 (or 55675 counting only the distinct ones).

The product of its digits is 7680, while the sum is 28.

The square root of 445384 is about 667.3709613101. The cubic root of 445384 is about 76.3680211184.

The spelling of 445384 in words is "four hundred forty-five thousand, three hundred eighty-four".