43894016 has 36 divisors (see below), whose sum is σ = 90459264. Its totient is φ = 21235200.

The previous prime is 43894003. The next prime is 43894031. The reversal of 43894016 is 61049834.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5171 + ... + 10701.

Almost surely, 2^43894016 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 43894016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45229632).

43894016 is an abundant number, since it is smaller than the sum of its proper divisors (46565248).

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

43894016 is an equidigital number, since it uses as much as digits as its factorization.

43894016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5578 (or 5564 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 43894016 is about 6625.2559195853. The cubic root of 43894016 is about 352.7511507618.

The spelling of 43894016 in words is "forty-three million, eight hundred ninety-four thousand, sixteen".