43250728 has 16 divisors (see below), whose sum is σ = 81180180. Its totient is φ = 21602688.

The previous prime is 43250723. The next prime is 43250729. The reversal of 43250728 is 82705234.

It can be written as a sum of positive squares in 2 ways, for example, as 41757444 + 1493284 = 6462^2 + 1222^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 43250728.

It is not an unprimeable number, because it can be changed into a prime (43250723) 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, 7476 + ... + 11932.

Almost surely, 2^43250728 is an apocalyptic number.

It is an amenable number.

43250728 is a deficient number, since it is larger than the sum of its proper divisors (37929452).

43250728 is a wasteful number, since it uses less digits than its factorization.

43250728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5676 (or 5672 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 43250728 is about 6576.5285675651. The cubic root of 43250728 is about 351.0194170583.

The spelling of 43250728 in words is "forty-three million, two hundred fifty thousand, seven hundred twenty-eight".