442453 has 16 divisors (see below), whose sum is σ = 532800. Its totient is φ = 362880.

The previous prime is 442447. The next prime is 442457. The reversal of 442453 is 354244.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 442453 - 2¹³ = 434261 is a prime.

It is a Duffinian number.

442453 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6025 + ... + 6097.

It is an arithmetic number, because the mean of its divisors is an integer number (33300).

2⁴⁴²⁴⁵³ is an apocalyptic number.

It is an amenable number.

442453 is a deficient number, since it is larger than the sum of its proper divisors (90347).

442453 is a wasteful number, since it uses less digits than its factorization.

442453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132.

The product of its digits is 1920, while the sum is 22.

The square root of 442453 is about 665.1714064811. The cubic root of 442453 is about 76.2001304297.

Adding to 442453 its reverse (354244), we get a palindrome (796697).

Subtracting from 442453 its reverse (354244), we obtain a square (88209 = 297²).

The spelling of 442453 in words is "four hundred forty-two thousand, four hundred fifty-three".