43630028 has 24 divisors (see below), whose sum is σ = 83625360. Its totient is φ = 19794240.

The previous prime is 43630021. The next prime is 43630033. The reversal of 43630028 is 82003634.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 43629979 and 43630006.

It is not an unprimeable number, because it can be changed into a prime (43630021) 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, 4043 + ... + 10178.

It is an arithmetic number, because the mean of its divisors is an integer number (3484390).

Almost surely, 2^43630028 is an apocalyptic number.

It is an amenable number.

43630028 is a deficient number, since it is larger than the sum of its proper divisors (39995332).

43630028 is a wasteful number, since it uses less digits than its factorization.

43630028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14297 (or 14295 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 43630028 is about 6605.3030210582. The cubic root of 43630028 is about 352.0425546865.

The spelling of 43630028 in words is "forty-three million, six hundred thirty thousand, twenty-eight".