28627144 has 32 divisors (see below), whose sum is σ = 66064320. Its totient is φ = 11324736.

The previous prime is 28627127. The next prime is 28627163. The reversal of 28627144 is 44172682.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 18934 + ... + 20389.

It is an arithmetic number, because the mean of its divisors is an integer number (2064510).

Almost surely, 2^28627144 is an apocalyptic number.

It is an amenable number.

28627144 is an abundant number, since it is smaller than the sum of its proper divisors (37437176).

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

28627144 is a wasteful number, since it uses less digits than its factorization.

28627144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39349 (or 39345 counting only the distinct ones).

The product of its digits is 21504, while the sum is 34.

The square root of 28627144 is about 5350.4340010881. The cubic root of 28627144 is about 305.9092957414.

The spelling of 28627144 in words is "twenty-eight million, six hundred twenty-seven thousand, one hundred forty-four".