27428844 has 24 divisors (see below), whose sum is σ = 64774080. Its totient is φ = 9032464.

The previous prime is 27428827. The next prime is 27428861. The reversal of 27428844 is 44882472.

It is an interprime number because it is at equal distance from previous prime (27428827) and next prime (27428861).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12774 + ... + 14765.

It is an arithmetic number, because the mean of its divisors is an integer number (2698920).

Almost surely, 2^27428844 is an apocalyptic number.

It is an amenable number.

27428844 is an abundant number, since it is smaller than the sum of its proper divisors (37345236).

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

27428844 is a wasteful number, since it uses less digits than its factorization.

27428844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27629 (or 27627 counting only the distinct ones).

The product of its digits is 114688, while the sum is 39.

The square root of 27428844 is about 5237.2553880826. The cubic root of 27428844 is about 301.5799754287.

The spelling of 27428844 in words is "twenty-seven million, four hundred twenty-eight thousand, eight hundred forty-four".