27880044 has 12 divisors (see below), whose sum is σ = 65053464. Its totient is φ = 9293344.

The previous prime is 27880033. The next prime is 27880057. The reversal of 27880044 is 44008872.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 27879987 and 27880014.

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 3 ways as a sum of consecutive naturals, for example, 1161657 + ... + 1161680.

It is an arithmetic number, because the mean of its divisors is an integer number (5421122).

Almost surely, 2^27880044 is an apocalyptic number.

It is an amenable number.

27880044 is an abundant number, since it is smaller than the sum of its proper divisors (37173420).

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

27880044 is a wasteful number, since it uses less digits than its factorization.

27880044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2323344 (or 2323342 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 33.

The square root of 27880044 is about 5280.1556795231. The cubic root of 27880044 is about 303.2246370867.

The spelling of 27880044 in words is "twenty-seven million, eight hundred eighty thousand, forty-four".