43591648 has 24 divisors (see below), whose sum is σ = 86034312. Its totient is φ = 21741696.

The previous prime is 43591633. The next prime is 43591649. The reversal of 43591648 is 84619534.

It is a self number, because there is not a number n which added to its sum of digits gives 43591648.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43591649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13486 + ... + 16402.

It is an arithmetic number, because the mean of its divisors is an integer number (3584763).

Almost surely, 2^43591648 is an apocalyptic number.

It is an amenable number.

43591648 is a deficient number, since it is larger than the sum of its proper divisors (42442664).

43591648 is a wasteful number, since it uses less digits than its factorization.

43591648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3394 (or 3386 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The square root of 43591648 is about 6602.3971404332. The cubic root of 43591648 is about 351.9392973836.

The spelling of 43591648 in words is "forty-three million, five hundred ninety-one thousand, six hundred forty-eight".