442234231 has 4 divisors (see below), whose sum is σ = 452518792. Its totient is φ = 431949672.

The previous prime is 442234211. The next prime is 442234297. The reversal of 442234231 is 132432244.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 442234231 - 2¹¹ = 442232183 is a prime.

It is a super-2 number, since 2×442234231² = 391142230136322722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 442234196 and 442234205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442234211) 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, 5142216 + ... + 5142301.

It is an arithmetic number, because the mean of its divisors is an integer number (113129698).

Almost surely, 2^442234231 is an apocalyptic number.

442234231 is a deficient number, since it is larger than the sum of its proper divisors (10284561).

442234231 is a wasteful number, since it uses less digits than its factorization.

442234231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10284560.

The product of its digits is 4608, while the sum is 25.

The square root of 442234231 is about 21029.3659200652. The cubic root of 442234231 is about 761.8756941596.

Adding to 442234231 its reverse (132432244), we get a palindrome (574666475).

The spelling of 442234231 in words is "four hundred forty-two million, two hundred thirty-four thousand, two hundred thirty-one".