28522443 has 8 divisors (see below), whose sum is σ = 38366928. Its totient is φ = 18846464.

The previous prime is 28522411. The next prime is 28522463. The reversal of 28522443 is 34422582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28522443 - 2⁵ = 28522411 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28522443.

It is not an unprimeable number, because it can be changed into a prime (28522463) 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, 41730 + ... + 42407.

It is an arithmetic number, because the mean of its divisors is an integer number (4795866).

Almost surely, 2^28522443 is an apocalyptic number.

28522443 is a deficient number, since it is larger than the sum of its proper divisors (9844485).

28522443 is a wasteful number, since it uses less digits than its factorization.

28522443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84253.

The product of its digits is 15360, while the sum is 30.

The square root of 28522443 is about 5340.6406919020. The cubic root of 28522443 is about 305.5358956289.

The spelling of 28522443 in words is "twenty-eight million, five hundred twenty-two thousand, four hundred forty-three".