43147428 has 24 divisors (see below), whose sum is σ = 106600032. Its totient is φ = 13536384.

The previous prime is 43147417. The next prime is 43147441. The reversal of 43147428 is 82474134.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105550 + ... + 105957.

It is an arithmetic number, because the mean of its divisors is an integer number (4441668).

Almost surely, 2^43147428 is an apocalyptic number.

It is an amenable number.

43147428 is an abundant number, since it is smaller than the sum of its proper divisors (63452604).

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

43147428 is a wasteful number, since it uses less digits than its factorization.

43147428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211531 (or 211529 counting only the distinct ones).

The product of its digits is 21504, while the sum is 33.

The square root of 43147428 is about 6568.6701850527. The cubic root of 43147428 is about 350.7397361230.

The spelling of 43147428 in words is "forty-three million, one hundred forty-seven thousand, four hundred twenty-eight".