28444850 has 48 divisors (see below), whose sum is σ = 61418688. Its totient is φ = 9599040.

The previous prime is 28444837. The next prime is 28444877. The reversal of 28444850 is 5844482.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 28444850.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22844 + ... + 24056.

It is an arithmetic number, because the mean of its divisors is an integer number (1279556).

Almost surely, 2^28444850 is an apocalyptic number.

28444850 is an abundant number, since it is smaller than the sum of its proper divisors (32973838).

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

28444850 is a wasteful number, since it uses less digits than its factorization.

28444850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299 (or 1294 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 35.

The square root of 28444850 is about 5333.3713540311. The cubic root of 28444850 is about 305.2585821070.

The spelling of 28444850 in words is "twenty-eight million, four hundred forty-four thousand, eight hundred fifty".