43427456 has 32 divisors (see below), whose sum is σ = 87106980. Its totient is φ = 21565440.

The previous prime is 43427443. The next prime is 43427459. The reversal of 43427456 is 65472434.

It can be written as a sum of positive squares in 2 ways, for example, as 43349056 + 78400 = 6584^2 + 280^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (43427459) 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, 19016 + ... + 21176.

Almost surely, 2^43427456 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 43427456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43553490).

43427456 is an abundant number, since it is smaller than the sum of its proper divisors (43679524).

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

43427456 is a wasteful number, since it uses less digits than its factorization.

43427456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2332 (or 2320 counting only the distinct ones).

The product of its digits is 80640, while the sum is 35.

The square root of 43427456 is about 6589.9511379069. The cubic root of 43427456 is about 351.4968707293.

The spelling of 43427456 in words is "forty-three million, four hundred twenty-seven thousand, four hundred fifty-six".