27992448 has 144 divisors (see below), whose sum is σ = 89783460. Its totient is φ = 8302080.

The previous prime is 27992443. The next prime is 27992467. The reversal of 27992448 is 84429972.

It is a tau number, because it is divible by the number of its divisors (144).

Its product of digits (290304) is a multiple of the sum of its prime divisors (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27992443) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 595561 + ... + 595607.

Almost surely, 2^27992448 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 27992448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44891730).

27992448 is an abundant number, since it is smaller than the sum of its proper divisors (61791012).

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

27992448 is a wasteful number, since it uses less digits than its factorization.

27992448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125 (or 63 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 27992448 is about 5290.7889770808. The cubic root of 27992448 is about 303.6315943519.

It can be divided in two parts, 279924 and 48, that added together give a palindrome (279972).

The spelling of 27992448 in words is "twenty-seven million, nine hundred ninety-two thousand, four hundred forty-eight".