40040288 has 12 divisors (see below), whose sum is σ = 78829380. Its totient is φ = 20020128.

The previous prime is 40040269. The next prime is 40040293. The reversal of 40040288 is 88204004.

40040288 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 625598 + ... + 625661.

It is an arithmetic number, because the mean of its divisors is an integer number (6569115).

Almost surely, 2^40040288 is an apocalyptic number.

It is an amenable number.

40040288 is a deficient number, since it is larger than the sum of its proper divisors (38789092).

40040288 is a wasteful number, since it uses less digits than its factorization.

40040288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251269 (or 1251261 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 40040288 is about 6327.7395648051. The cubic root of 40040288 is about 342.1099699932.

The spelling of 40040288 in words is "forty million, forty thousand, two hundred eighty-eight".