43240064 has 32 divisors (see below), whose sum is σ = 98450400. Its totient is φ = 18531072.

The previous prime is 43240051. The next prime is 43240081. The reversal of 43240064 is 46004234.

It is a happy number.

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

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, 23234 + ... + 25025.

It is an arithmetic number, because the mean of its divisors is an integer number (3076575).

Almost surely, 2^43240064 is an apocalyptic number.

It is an amenable number.

43240064 is an abundant number, since it is smaller than the sum of its proper divisors (55210336).

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

43240064 is an equidigital number, since it uses as much as digits as its factorization.

43240064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48280 (or 48268 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 43240064 is about 6575.7177555002. The cubic root of 43240064 is about 350.9905652992.

Adding to 43240064 its reverse (46004234), we get a palindrome (89244298).

The spelling of 43240064 in words is "forty-three million, two hundred forty thousand, sixty-four".