27945544 has 16 divisors (see below), whose sum is σ = 57161520. Its totient is φ = 12702480.

The previous prime is 27945517. The next prime is 27945551. The reversal of 27945544 is 44554972.

It is a junction number, because it is equal to n+sod(n) for n = 27945497 and 27945506.

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 3 ways as a sum of consecutive naturals, for example, 158694 + ... + 158869.

It is an arithmetic number, because the mean of its divisors is an integer number (3572595).

Almost surely, 2^27945544 is an apocalyptic number.

It is an amenable number.

27945544 is an abundant number, since it is smaller than the sum of its proper divisors (29215976).

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

27945544 is a wasteful number, since it uses less digits than its factorization.

27945544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317580 (or 317576 counting only the distinct ones).

The product of its digits is 201600, while the sum is 40.

The square root of 27945544 is about 5286.3545094895. The cubic root of 27945544 is about 303.4619117044.

It can be divided in two parts, 2794 and 5544, that added together give a palindrome (8338).

The spelling of 27945544 in words is "twenty-seven million, nine hundred forty-five thousand, five hundred forty-four".