27740844 has 18 divisors (see below), whose sum is σ = 70122780. Its totient is φ = 9246936.

The previous prime is 27740833. The next prime is 27740851. The reversal of 27740844 is 44804772.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 770579 = 27740844 / (2 + 7 + 7 + 4 + 0 + 8 + 4 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 27740799 and 27740808.

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 5 ways as a sum of consecutive naturals, for example, 385254 + ... + 385325.

It is an arithmetic number, because the mean of its divisors is an integer number (3895710).

Almost surely, 2^27740844 is an apocalyptic number.

It is an amenable number.

27740844 is an abundant number, since it is smaller than the sum of its proper divisors (42381936).

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

27740844 is a wasteful number, since it uses less digits than its factorization.

27740844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770589 (or 770584 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 36.

The square root of 27740844 is about 5266.9577556688. The cubic root of 27740844 is about 302.7191463486.

The spelling of 27740844 in words is "twenty-seven million, seven hundred forty thousand, eight hundred forty-four".