27728448 has 112 divisors (see below), whose sum is σ = 84368640. Its totient is φ = 7948800.

The previous prime is 27728431. The next prime is 27728473. The reversal of 27728448 is 84482772.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39783 + ... + 40473.

Almost surely, 2^27728448 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 27728448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42184320).

27728448 is an abundant number, since it is smaller than the sum of its proper divisors (56640192).

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

27728448 is a wasteful number, since it uses less digits than its factorization.

27728448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736 (or 726 counting only the distinct ones).

The product of its digits is 200704, while the sum is 42.

The square root of 27728448 is about 5265.7808537766. The cubic root of 27728448 is about 302.6740495999.

The spelling of 27728448 in words is "twenty-seven million, seven hundred twenty-eight thousand, four hundred forty-eight".