28418888 has 16 divisors (see below), whose sum is σ = 53343360. Its totient is φ = 14194000.

The previous prime is 28418881. The next prime is 28418899. The reversal of 28418888 is 88881482.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (28418881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10913 + ... + 13263.

It is an arithmetic number, because the mean of its divisors is an integer number (3333960).

Almost surely, 2^28418888 is an apocalyptic number.

It is an amenable number.

28418888 is a deficient number, since it is larger than the sum of its proper divisors (24924472).

28418888 is a wasteful number, since it uses less digits than its factorization.

28418888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3868 (or 3864 counting only the distinct ones).

The product of its digits is 262144, while the sum is 47.

The square root of 28418888 is about 5330.9368782607. The cubic root of 28418888 is about 305.1656826231.

The spelling of 28418888 in words is "twenty-eight million, four hundred eighteen thousand, eight hundred eighty-eight".