43889244 has 48 divisors (see below), whose sum is σ = 122131968. Its totient is φ = 11994048.

The previous prime is 43889231. The next prime is 43889249. The reversal of 43889244 is 44298834.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 43889196 and 43889205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43889249) 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, 9427 + ... + 13290.

It is an arithmetic number, because the mean of its divisors is an integer number (2544416).

Almost surely, 2^43889244 is an apocalyptic number.

It is an amenable number.

43889244 is an abundant number, since it is smaller than the sum of its proper divisors (78242724).

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

43889244 is a wasteful number, since it uses less digits than its factorization.

43889244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22754 (or 22752 counting only the distinct ones).

The product of its digits is 221184, while the sum is 42.

The square root of 43889244 is about 6624.8957727650. The cubic root of 43889244 is about 352.7383670185.

The spelling of 43889244 in words is "forty-three million, eight hundred eighty-nine thousand, two hundred forty-four".