442131234 has 16 divisors (see below), whose sum is σ = 889150080. Its totient is φ = 146562480.

The previous prime is 442131227. The next prime is 442131251. The reversal of 442131234 is 432131244.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202474 + ... + 204645.

It is an arithmetic number, because the mean of its divisors is an integer number (55571880).

Almost surely, 2^442131234 is an apocalyptic number.

442131234 is an abundant number, since it is smaller than the sum of its proper divisors (447018846).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442131234 is a wasteful number, since it uses less digits than its factorization.

442131234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407305.

The product of its digits is 2304, while the sum is 24.

The square root of 442131234 is about 21026.9168924025. The cubic root of 442131234 is about 761.8165422455.

Adding to 442131234 its reverse (432131244), we get a palindrome (874262478).

The spelling of 442131234 in words is "four hundred forty-two million, one hundred thirty-one thousand, two hundred thirty-four".