43208428 has 12 divisors (see below), whose sum is σ = 76159720. Its totient is φ = 21448512.

The previous prime is 43208423. The next prime is 43208443. The reversal of 43208428 is 82480234.

It is a self number, because there is not a number n which added to its sum of digits gives 43208428.

It is not an unprimeable number, because it can be changed into a prime (43208423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38301 + ... + 39412.

Almost surely, 2^43208428 is an apocalyptic number.

It is an amenable number.

43208428 is a deficient number, since it is larger than the sum of its proper divisors (32951292).

43208428 is a wasteful number, since it uses less digits than its factorization.

43208428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77856 (or 77854 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 43208428 is about 6573.3117984772. The cubic root of 43208428 is about 350.9049452699.

The spelling of 43208428 in words is "forty-three million, two hundred eight thousand, four hundred twenty-eight".