442240234 has 8 divisors (see below), whose sum is σ = 684759168. Its totient is φ = 213987180.

The previous prime is 442240229. The next prime is 442240237. The reversal of 442240234 is 432042244.

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

It is a junction number, because it is equal to n+sod(n) for n = 442240199 and 442240208.

It is not an unprimeable number, because it can be changed into a prime (442240237) 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, 3566392 + ... + 3566515.

It is an arithmetic number, because the mean of its divisors is an integer number (85594896).

Almost surely, 2^442240234 is an apocalyptic number.

442240234 is a deficient number, since it is larger than the sum of its proper divisors (242518934).

442240234 is a wasteful number, since it uses less digits than its factorization.

442240234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7132940.

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 442240234 is about 21029.5086485633. The cubic root of 442240234 is about 761.8791414422.

Adding to 442240234 its reverse (432042244), we get a palindrome (874282478).

The spelling of 442240234 in words is "four hundred forty-two million, two hundred forty thousand, two hundred thirty-four".