28054544 has 40 divisors (see below), whose sum is σ = 62728128. Its totient is φ = 11905920.

The previous prime is 28054531. The next prime is 28054589. The reversal of 28054544 is 44545082.

It is a self number, because there is not a number n which added to its sum of digits gives 28054544.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10814 + ... + 13154.

Almost surely, 2^28054544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28054544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31364064).

28054544 is an abundant number, since it is smaller than the sum of its proper divisors (34673584).

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

28054544 is a wasteful number, since it uses less digits than its factorization.

28054544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2463 (or 2457 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 32.

The square root of 28054544 is about 5296.6540381641. The cubic root of 28054544 is about 303.8559451370.

The spelling of 28054544 in words is "twenty-eight million, fifty-four thousand, five hundred forty-four".