453442 has 8 divisors (see below), whose sum is σ = 742032. Its totient is φ = 206100.

The previous prime is 453421. The next prime is 453451. The reversal of 453442 is 244354.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 20611 = 453442 / (4 + 5 + 3 + 4 + 4 + 2).

It is an unprimeable number.

453442 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 in 3 ways as a sum of consecutive naturals, for example, 10284 + ... + 10327.

It is an arithmetic number, because the mean of its divisors is an integer number (92754).

2⁴⁵³⁴⁴² is an apocalyptic number.

453442 is a deficient number, since it is larger than the sum of its proper divisors (288590).

453442 is a wasteful number, since it uses less digits than its factorization.

453442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20624.

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

The square root of 453442 is about 673.3810214136. The cubic root of 453442 is about 76.8258277209.

Adding to 453442 its reverse (244354), we get a palindrome (697796).

The spelling of 453442 in words is "four hundred fifty-three thousand, four hundred forty-two".