43489872 has 100 divisors (see below), whose sum is σ = 131435040. Its totient is φ = 13856832.

The previous prime is 43489861. The next prime is 43489877. The reversal of 43489872 is 27898434.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43489877) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 29079 + ... + 30537.

Almost surely, 2^43489872 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 43489872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65717520).

43489872 is an abundant number, since it is smaller than the sum of its proper divisors (87945168).

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

43489872 is a wasteful number, since it uses less digits than its factorization.

43489872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1502 (or 1487 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 43489872 is about 6594.6851327414. The cubic root of 43489872 is about 351.6651861107.

The spelling of 43489872 in words is "forty-three million, four hundred eighty-nine thousand, eight hundred seventy-two".