43520828 has 12 divisors (see below), whose sum is σ = 82020120. Its totient is φ = 20086512.

The previous prime is 43520821. The next prime is 43520831. The reversal of 43520828 is 82802534.

It is a junction number, because it is equal to n+sod(n) for n = 43520794 and 43520803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43520821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 418418 + ... + 418521.

It is an arithmetic number, because the mean of its divisors is an integer number (6835010).

Almost surely, 2^43520828 is an apocalyptic number.

It is an amenable number.

43520828 is a deficient number, since it is larger than the sum of its proper divisors (38499292).

43520828 is a wasteful number, since it uses less digits than its factorization.

43520828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836956 (or 836954 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 43520828 is about 6597.0317567827. The cubic root of 43520828 is about 351.7486045030.

The spelling of 43520828 in words is "forty-three million, five hundred twenty thousand, eight hundred twenty-eight".