27400144 has 10 divisors (see below), whose sum is σ = 53087810. Its totient is φ = 13700064.

The previous prime is 27400133. The next prime is 27400151. The reversal of 27400144 is 44100472.

It can be written as a sum of positive squares in only one way, i.e., 21049744 + 6350400 = 4588^2 + 2520^2 .

It is a congruent number.

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 as a sum of consecutive naturals, namely, 856239 + ... + 856270.

It is an arithmetic number, because the mean of its divisors is an integer number (5308781).

Almost surely, 2^27400144 is an apocalyptic number.

It is an amenable number.

27400144 is a deficient number, since it is larger than the sum of its proper divisors (25687666).

27400144 is a wasteful number, since it uses less digits than its factorization.

27400144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712517 (or 1712511 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 27400144 is about 5234.5146861958. The cubic root of 27400144 is about 301.4747532780.

The spelling of 27400144 in words is "twenty-seven million, four hundred thousand, one hundred forty-four".