28027456 has 28 divisors (see below), whose sum is σ = 57538620. Its totient is φ = 13529600.

The previous prime is 28027453. The next prime is 28027457. The reversal of 28027456 is 65472082.

It can be written as a sum of positive squares in 2 ways, for example, as 8526400 + 19501056 = 2920^2 + 4416^2 .

It is not an unprimeable number, because it can be changed into a prime (28027453) 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, 5695 + ... + 9406.

Almost surely, 2^28027456 is an apocalyptic number.

It is an amenable number.

28027456 is an abundant number, since it is smaller than the sum of its proper divisors (29511164).

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

28027456 is a wasteful number, since it uses less digits than its factorization.

28027456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15142 (or 15132 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 28027456 is about 5294.0963345976. The cubic root of 28027456 is about 303.7581178432.

The spelling of 28027456 in words is "twenty-eight million, twenty-seven thousand, four hundred fifty-six".