43945612 has 12 divisors (see below), whose sum is σ = 81428760. Its totient is φ = 20680256.

The previous prime is 43945609. The next prime is 43945637. The reversal of 43945612 is 21654934.

It is a happy number.

43945612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 323062 + ... + 323197.

It is an arithmetic number, because the mean of its divisors is an integer number (6785730).

Almost surely, 2^43945612 is an apocalyptic number.

It is an amenable number.

43945612 is a deficient number, since it is larger than the sum of its proper divisors (37483148).

43945612 is a wasteful number, since it uses less digits than its factorization.

43945612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646280 (or 646278 counting only the distinct ones).

The product of its digits is 25920, while the sum is 34.

The square root of 43945612 is about 6629.1486632900. The cubic root of 43945612 is about 352.8893125076.

The spelling of 43945612 in words is "forty-three million, nine hundred forty-five thousand, six hundred twelve".