43217982 has 16 divisors (see below), whose sum is σ = 96040080. Its totient is φ = 14405976.

The previous prime is 43217981. The next prime is 43218023. The reversal of 43217982 is 28971234.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43217981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 400113 + ... + 400220.

It is an arithmetic number, because the mean of its divisors is an integer number (6002505).

Almost surely, 2^43217982 is an apocalyptic number.

43217982 is an abundant number, since it is smaller than the sum of its proper divisors (52822098).

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

43217982 is a wasteful number, since it uses less digits than its factorization.

43217982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800344 (or 800338 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 43217982 is about 6574.0384848280. The cubic root of 43217982 is about 350.9308067274.

The spelling of 43217982 in words is "forty-three million, two hundred seventeen thousand, nine hundred eighty-two".