43664316 has 24 divisors (see below), whose sum is σ = 104052480. Its totient is φ = 14244912.

The previous prime is 43664311. The next prime is 43664351. The reversal of 43664316 is 61346634.

43664316 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43664311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38146 + ... + 39273.

It is an arithmetic number, because the mean of its divisors is an integer number (4335520).

Almost surely, 2^43664316 is an apocalyptic number.

It is an amenable number.

43664316 is an abundant number, since it is smaller than the sum of its proper divisors (60388164).

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

43664316 is a wasteful number, since it uses less digits than its factorization.

43664316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77473 (or 77471 counting only the distinct ones).

The product of its digits is 31104, while the sum is 33.

The square root of 43664316 is about 6607.8980016341. The cubic root of 43664316 is about 352.1347516967.

The spelling of 43664316 in words is "forty-three million, six hundred sixty-four thousand, three hundred sixteen".