42312444 has 24 divisors (see below), whose sum is σ = 100593360. Its totient is φ = 13837824.

The previous prime is 42312437. The next prime is 42312481. The reversal of 42312444 is 44421324.

It is a happy number.

42312444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a congruent 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, 32629 + ... + 33900.

It is an arithmetic number, because the mean of its divisors is an integer number (4191390).

Almost surely, 2^42312444 is an apocalyptic number.

It is an amenable number.

42312444 is an abundant number, since it is smaller than the sum of its proper divisors (58280916).

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

42312444 is a wasteful number, since it uses less digits than its factorization.

42312444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66589 (or 66587 counting only the distinct ones).

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

The square root of 42312444 is about 6504.8016111177. The cubic root of 42312444 is about 348.4624911687.

Adding to 42312444 its reverse (44421324), we get a palindrome (86733768).

The spelling of 42312444 in words is "forty-two million, three hundred twelve thousand, four hundred forty-four".