43340664 has 32 divisors (see below), whose sum is σ = 109728000. Its totient is φ = 14263392.

The previous prime is 43340657. The next prime is 43340669. The reversal of 43340664 is 46604334.

43340664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43340669) 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, 9534 + ... + 13325.

It is an arithmetic number, because the mean of its divisors is an integer number (3429000).

Almost surely, 2^43340664 is an apocalyptic number.

It is an amenable number.

43340664 is an abundant number, since it is smaller than the sum of its proper divisors (66387336).

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

43340664 is a wasteful number, since it uses less digits than its factorization.

43340664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22947 (or 22943 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

The square root of 43340664 is about 6583.3626666013. The cubic root of 43340664 is about 351.2625530482.

Adding to 43340664 its reverse (46604334), we get a palindrome (89944998).

The spelling of 43340664 in words is "forty-three million, three hundred forty thousand, six hundred sixty-four".