43242444 has 96 divisors (see below), whose sum is σ = 130959360. Its totient is φ = 12082176.

The previous prime is 43242439. The next prime is 43242469. The reversal of 43242444 is 44424234.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34924 + ... + 36140.

It is an arithmetic number, because the mean of its divisors is an integer number (1364160).

Almost surely, 2^43242444 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 43242444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65479680).

43242444 is an abundant number, since it is smaller than the sum of its proper divisors (87716916).

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

43242444 is a wasteful number, since it uses less digits than its factorization.

43242444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284 (or 1276 counting only the distinct ones).

The product of its digits is 12288, while the sum is 27.

The square root of 43242444 is about 6575.8987218478. The cubic root of 43242444 is about 350.9970048689.

Adding to 43242444 its reverse (44424234), we get a palindrome (87666678).

The spelling of 43242444 in words is "forty-three million, two hundred forty-two thousand, four hundred forty-four".