442353 has 4 divisors (see below), whose sum is σ = 589808. Its totient is φ = 294900.

The previous prime is 442333. The next prime is 442363. The reversal of 442353 is 353244.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 442353 - 2⁸ = 442097 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73723 + ... + 73728.

It is an arithmetic number, because the mean of its divisors is an integer number (147452).

2⁴⁴²³⁵³ is an apocalyptic number.

It is an amenable number.

442353 is a deficient number, since it is larger than the sum of its proper divisors (147455).

442353 is a wasteful number, since it uses less digits than its factorization.

442353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147454.

The product of its digits is 1440, while the sum is 21.

The square root of 442353 is about 665.0962336384. The cubic root of 442353 is about 76.1943892646.

Adding to 442353 its reverse (353244), we get a palindrome (795597).

The spelling of 442353 in words is "four hundred forty-two thousand, three hundred fifty-three".