43718441 has 12 divisors (see below), whose sum is σ = 50128092. Its totient is φ = 37979136.

The previous prime is 43718431. The next prime is 43718461. The reversal of 43718441 is 14481734.

43718441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 92416 + 43626025 = 304^2 + 6605^2 .

It is a de Polignac number, because none of the positive numbers 2^k-43718441 is a prime.

It is a super-2 number, since 2×43718441² = 3822604166940962, which contains 22 as substring.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43718398 and 43718407.

It is not an unprimeable number, because it can be changed into a prime (43718431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4736 + ... + 10481.

It is an arithmetic number, because the mean of its divisors is an integer number (4177341).

Almost surely, 2^43718441 is an apocalyptic number.

It is an amenable number.

43718441 is a deficient number, since it is larger than the sum of its proper divisors (6409651).

43718441 is a wasteful number, since it uses less digits than its factorization.

43718441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15260 (or 15247 counting only the distinct ones).

The product of its digits is 10752, while the sum is 32.

The square root of 43718441 is about 6611.9922111267. The cubic root of 43718441 is about 352.2801902415.

The spelling of 43718441 in words is "forty-three million, seven hundred eighteen thousand, four hundred forty-one".