43628819 has 8 divisors (see below), whose sum is σ = 47040000. Its totient is φ = 40225536.

The previous prime is 43628813. The next prime is 43628821. The reversal of 43628819 is 91882634.

43628819 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 43628819 - 2⁴ = 43628803 is a prime.

It is a super-2 number, since 2×43628819² = 3806947694669522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43628813) 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, 14894 + ... + 17580.

It is an arithmetic number, because the mean of its divisors is an integer number (5880000).

Almost surely, 2^43628819 is an apocalyptic number.

43628819 is a deficient number, since it is larger than the sum of its proper divisors (3411181).

43628819 is a wasteful number, since it uses less digits than its factorization.

43628819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3949.

The product of its digits is 82944, while the sum is 41.

The square root of 43628819 is about 6605.2115030482. The cubic root of 43628819 is about 352.0393029246.

The spelling of 43628819 in words is "forty-three million, six hundred twenty-eight thousand, eight hundred nineteen".