27744072 has 32 divisors (see below), whose sum is σ = 72377280. Its totient is φ = 8845760.

The previous prime is 27744071. The next prime is 27744083. The reversal of 27744072 is 27044772.

It is a super-2 number, since 2×27744072² = 1539467062282368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27744071) by changing a digit.

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, 24579 + ... + 25682.

It is an arithmetic number, because the mean of its divisors is an integer number (2261790).

Almost surely, 2^27744072 is an apocalyptic number.

It is an amenable number.

27744072 is an abundant number, since it is smaller than the sum of its proper divisors (44633208).

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

27744072 is a wasteful number, since it uses less digits than its factorization.

27744072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50293 (or 50289 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 33.

The square root of 27744072 is about 5267.2641855141. The cubic root of 27744072 is about 302.7308876340.

The spelling of 27744072 in words is "twenty-seven million, seven hundred forty-four thousand, seventy-two".