442375 has 8 divisors (see below), whose sum is σ = 552240. Its totient is φ = 353800.

The previous prime is 442367. The next prime is 442397. The reversal of 442375 is 573244.

It is not a de Polignac number, because 442375 - 2³ = 442367 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a d-powerful number, because it can be written as 4⁵ + 4⁹ + 3¹¹ + 2¹¹ + 7 + 5 .

442375 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1645 + ... + 1894.

It is an arithmetic number, because the mean of its divisors is an integer number (69030).

442375 is a Friedman number, since it can be written as 7+432*4^5, using all its digits and the basic arithmetic operations.

2⁴⁴²³⁷⁵ is an apocalyptic number.

442375 is a deficient number, since it is larger than the sum of its proper divisors (109865).

442375 is an equidigital number, since it uses as much as digits as its factorization.

442375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3554 (or 3544 counting only the distinct ones).

The product of its digits is 3360, while the sum is 25.

The square root of 442375 is about 665.1127723928. The cubic root of 442375 is about 76.1956523951.

The spelling of 442375 in words is "four hundred forty-two thousand, three hundred seventy-five".