28444876 has 24 divisors (see below), whose sum is σ = 52871616. Its totient is φ = 13344000.

The previous prime is 28444837. The next prime is 28444877. The reversal of 28444876 is 67844482.

It is a super-2 number, since 2×28444876² = 1618221941310752, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28444877) 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, 37501 + ... + 38251.

It is an arithmetic number, because the mean of its divisors is an integer number (2202984).

Almost surely, 2^28444876 is an apocalyptic number.

It is an amenable number.

28444876 is a deficient number, since it is larger than the sum of its proper divisors (24426740).

28444876 is a wasteful number, since it uses less digits than its factorization.

28444876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1329 (or 1327 counting only the distinct ones).

The product of its digits is 344064, while the sum is 43.

The square root of 28444876 is about 5333.3737915132. The cubic root of 28444876 is about 305.2586751141.

The spelling of 28444876 in words is "twenty-eight million, four hundred forty-four thousand, eight hundred seventy-six".