40727144 has 16 divisors (see below), whose sum is σ = 76431300. Its totient is φ = 20345472.

The previous prime is 40727143. The next prime is 40727153. The reversal of 40727144 is 44172704.

40727144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 31787044 + 8940100 = 5638^2 + 2990^2 .

It is not an unprimeable number, because it can be changed into a prime (40727143) 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 3 ways as a sum of consecutive naturals, for example, 15494 + ... + 17930.

Almost surely, 2^40727144 is an apocalyptic number.

It is an amenable number.

40727144 is a deficient number, since it is larger than the sum of its proper divisors (35704156).

40727144 is a wasteful number, since it uses less digits than its factorization.

40727144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4532 (or 4528 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 29.

The square root of 40727144 is about 6381.7821962207. The cubic root of 40727144 is about 344.0550885275.

Adding to 40727144 its reverse (44172704), we get a palindrome (84899848).

The spelling of 40727144 in words is "forty million, seven hundred twenty-seven thousand, one hundred forty-four".