43868736 has 112 divisors (see below), whose sum is σ = 131673600. Its totient is φ = 14317056.

The previous prime is 43868711. The next prime is 43868743. The reversal of 43868736 is 63786834.

It is a junction number, because it is equal to n+sod(n) for n = 43868691 and 43868700.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91345 + ... + 91823.

Almost surely, 2^43868736 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 43868736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65836800).

43868736 is an abundant number, since it is smaller than the sum of its proper divisors (87804864).

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

43868736 is a wasteful number, since it uses less digits than its factorization.

43868736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553 (or 537 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 43868736 is about 6623.3477939785. The cubic root of 43868736 is about 352.6834174470.

The spelling of 43868736 in words is "forty-three million, eight hundred sixty-eight thousand, seven hundred thirty-six".