28448888 has 32 divisors (see below), whose sum is σ = 60827760. Its totient is φ = 12357120.

The previous prime is 28448881. The next prime is 28448911. The reversal of 28448888 is 88884482.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28448881) 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 7 ways as a sum of consecutive naturals, for example, 6278 + ... + 9813.

Almost surely, 2^28448888 is an apocalyptic number.

It is an amenable number.

28448888 is an abundant number, since it is smaller than the sum of its proper divisors (32378872).

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

28448888 is a wasteful number, since it uses less digits than its factorization.

28448888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16127 (or 16123 counting only the distinct ones).

The product of its digits is 1048576, while the sum is 50.

The square root of 28448888 is about 5333.7499003984. The cubic root of 28448888 is about 305.2730261491.

The spelling of 28448888 in words is "twenty-eight million, four hundred forty-eight thousand, eight hundred eighty-eight".