43471944 has 64 divisors (see below), whose sum is σ = 121329600. Its totient is φ = 14421888.

The previous prime is 43471933. The next prime is 43471999. The reversal of 43471944 is 44917434.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 43471899 and 43471908.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67287 + ... + 67929.

It is an arithmetic number, because the mean of its divisors is an integer number (1895775).

Almost surely, 2^43471944 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 43471944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60664800).

43471944 is an abundant number, since it is smaller than the sum of its proper divisors (77857656).

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

43471944 is a wasteful number, since it uses less digits than its factorization.

43471944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971 (or 961 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 43471944 is about 6593.3257162073. The cubic root of 43471944 is about 351.6168566974.

The spelling of 43471944 in words is "forty-three million, four hundred seventy-one thousand, nine hundred forty-four".