442354 has 8 divisors (see below), whose sum is σ = 723888. Its totient is φ = 201060.

The previous prime is 442333. The next prime is 442363. The reversal of 442354 is 453244.

It is a happy number.

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

It is a super-2 number, since 2×442354² = 391354122632, which contains 22 as substring.

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: 20107 = 442354 / (4 + 4 + 2 + 3 + 5 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10032 + ... + 10075.

It is an arithmetic number, because the mean of its divisors is an integer number (90486).

2⁴⁴²³⁵⁴ is an apocalyptic number.

442354 is a deficient number, since it is larger than the sum of its proper divisors (281534).

442354 is a wasteful number, since it uses less digits than its factorization.

442354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20120.

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

The square root of 442354 is about 665.0969854089. The cubic root of 442354 is about 76.1944466805.

Adding to 442354 its reverse (453244), we get a palindrome (895598).

The spelling of 442354 in words is "four hundred forty-two thousand, three hundred fifty-four".