42243232 has 96 divisors (see below), whose sum is σ = 95618880. Its totient is φ = 18247680.

The previous prime is 42243211. The next prime is 42243239. The reversal of 42243232 is 23234224.

It is not an unprimeable number, because it can be changed into a prime (42243239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 630463 + ... + 630529.

It is an arithmetic number, because the mean of its divisors is an integer number (996030).

Almost surely, 2^42243232 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 42243232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47809440).

42243232 is an abundant number, since it is smaller than the sum of its proper divisors (53375648).

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

42243232 is a wasteful number, since it uses less digits than its factorization.

42243232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174 (or 166 counting only the distinct ones).

The product of its digits is 2304, while the sum is 22.

The square root of 42243232 is about 6499.4793637645. The cubic root of 42243232 is about 348.2723898988.

Adding to 42243232 its reverse (23234224), we get a palindrome (65477456).

The spelling of 42243232 in words is "forty-two million, two hundred forty-three thousand, two hundred thirty-two".