39091144 has 8 divisors (see below), whose sum is σ = 73295910. Its totient is φ = 19545568.

The previous prime is 39091139. The next prime is 39091183. The reversal of 39091144 is 44119093.

39091144 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 only one way, i.e., 37675044 + 1416100 = 6138^2 + 1190^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 12.

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 as a sum of consecutive naturals, namely, 2443189 + ... + 2443204.

Almost surely, 2^39091144 is an apocalyptic number.

It is an amenable number.

39091144 is a deficient number, since it is larger than the sum of its proper divisors (34204766).

39091144 is a wasteful number, since it uses less digits than its factorization.

39091144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4886399 (or 4886395 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 39091144 is about 6252.2911000688. The cubic root of 39091144 is about 339.3851170409.

The spelling of 39091144 in words is "thirty-nine million, ninety-one thousand, one hundred forty-four".