442401234 has 128 divisors (see below), whose sum is σ = 1071221760. Its totient is φ = 120268800.

The previous prime is 442401227. The next prime is 442401247. The reversal of 442401234 is 432104244.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2714037 + ... + 2714199.

It is an arithmetic number, because the mean of its divisors is an integer number (8368920).

Almost surely, 2^442401234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 442401234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (535610880).

442401234 is an abundant number, since it is smaller than the sum of its proper divisors (628820526).

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

442401234 is a wasteful number, since it uses less digits than its factorization.

442401234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 442401234 is about 21033.3362546221. The cubic root of 442401234 is about 761.9715856614.

Adding to 442401234 its reverse (432104244), we get a palindrome (874505478).

The spelling of 442401234 in words is "four hundred forty-two million, four hundred one thousand, two hundred thirty-four".