43520928 has 48 divisors (see below), whose sum is σ = 124631136. Its totient is φ = 13187840.

The previous prime is 43520923. The next prime is 43520947. The reversal of 43520928 is 82902534.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (43520923) 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, 19551 + ... + 21662.

It is an arithmetic number, because the mean of its divisors is an integer number (2596482).

Almost surely, 2^43520928 is an apocalyptic number.

43520928 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

43520928 is an abundant number, since it is smaller than the sum of its proper divisors (81110208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43520928 is a wasteful number, since it uses less digits than its factorization.

43520928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41237 (or 41229 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 43520928 is about 6597.0393359446. The cubic root of 43520928 is about 351.7488739129.

The spelling of 43520928 in words is "forty-three million, five hundred twenty thousand, nine hundred twenty-eight".