442042234 has 16 divisors (see below), whose sum is σ = 675537120. Its totient is φ = 216880560.

The previous prime is 442042231. The next prime is 442042253. The reversal of 442042234 is 432240244.

It is a junction number, because it is equal to n+sod(n) for n = 442042199 and 442042208.

It is not an unprimeable number, because it can be changed into a prime (442042231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49957 + ... + 58135.

It is an arithmetic number, because the mean of its divisors is an integer number (42221070).

Almost surely, 2^442042234 is an apocalyptic number.

442042234 is a deficient number, since it is larger than the sum of its proper divisors (233494886).

442042234 is a wasteful number, since it uses less digits than its factorization.

442042234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8685.

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

The square root of 442042234 is about 21024.8004508961. The cubic root of 442042234 is about 761.7654215096.

Adding to 442042234 its reverse (432240244), we get a palindrome (874282478).

The spelling of 442042234 in words is "four hundred forty-two million, forty-two thousand, two hundred thirty-four".