43628318 has 16 divisors (see below), whose sum is σ = 66162096. Its totient is φ = 21576000.

The previous prime is 43628311. The next prime is 43628339. The reversal of 43628318 is 81382634.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43628311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116780 + ... + 117152.

It is an arithmetic number, because the mean of its divisors is an integer number (4135131).

Almost surely, 2^43628318 is an apocalyptic number.

43628318 is a deficient number, since it is larger than the sum of its proper divisors (22533778).

43628318 is a wasteful number, since it uses less digits than its factorization.

43628318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859.

The product of its digits is 27648, while the sum is 35.

The square root of 43628318 is about 6605.1735783399. The cubic root of 43628318 is about 352.0379554027.

The spelling of 43628318 in words is "forty-three million, six hundred twenty-eight thousand, three hundred eighteen".