442231412 has 48 divisors (see below), whose sum is σ = 910562688. Its totient is φ = 183982080.

The previous prime is 442231369. The next prime is 442231457. The reversal of 442231412 is 214132244.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 259748 + ... + 261444.

It is an arithmetic number, because the mean of its divisors is an integer number (18970056).

Almost surely, 2^442231412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 442231412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (455281344).

442231412 is an abundant number, since it is smaller than the sum of its proper divisors (468331276).

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

442231412 is a wasteful number, since it uses less digits than its factorization.

442231412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1976 (or 1974 counting only the distinct ones).

The product of its digits is 1536, while the sum is 23.

The square root of 442231412 is about 21029.2988946375. The cubic root of 442231412 is about 761.8740753100.

Adding to 442231412 its reverse (214132244), we get a palindrome (656363656).

The spelling of 442231412 in words is "four hundred forty-two million, two hundred thirty-one thousand, four hundred twelve".