27944370 has 48 divisors (see below), whose sum is σ = 74437272. Its totient is φ = 7269120.

The previous prime is 27944369. The next prime is 27944387. The reversal of 27944370 is 7344972.

It can be written as a sum of positive squares in 4 ways, for example, as 24176889 + 3767481 = 4917^2 + 1941^2 .

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 23 ways as a sum of consecutive naturals, for example, 97 + ... + 7476.

Almost surely, 2^27944370 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27944370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37218636).

27944370 is an abundant number, since it is smaller than the sum of its proper divisors (46492902).

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

27944370 is a wasteful number, since it uses less digits than its factorization.

27944370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7627 (or 7624 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 27944370 is about 5286.2434677188. The cubic root of 27944370 is about 303.4576621387.

The spelling of 27944370 in words is "twenty-seven million, nine hundred forty-four thousand, three hundred seventy".