43520068 has 36 divisors (see below), whose sum is σ = 83626452. Its totient is φ = 19747840.

The previous prime is 43520041. The next prime is 43520083. The reversal of 43520068 is 86002534.

It can be written as a sum of positive squares in 6 ways, for example, as 1633284 + 41886784 = 1278^2 + 6472^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56808 + ... + 57568.

It is an arithmetic number, because the mean of its divisors is an integer number (2322957).

Almost surely, 2^43520068 is an apocalyptic number.

It is an amenable number.

43520068 is a deficient number, since it is larger than the sum of its proper divisors (40106384).

43520068 is a wasteful number, since it uses less digits than its factorization.

43520068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840 (or 809 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 43520068 is about 6596.9741548683. The cubic root of 43520068 is about 351.7465569738.

It can be divided in two parts, 435200 and 68, that multiplied together give a square (29593600 = 5440²).

The spelling of 43520068 in words is "forty-three million, five hundred twenty thousand, sixty-eight".