40031156 has 48 divisors (see below), whose sum is σ = 78868608. Its totient is φ = 17772480.

The previous prime is 40031113. The next prime is 40031171. The reversal of 40031156 is 65113004.

40031156 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 in 15 ways as a sum of consecutive naturals, for example, 388601 + ... + 388703.

It is an arithmetic number, because the mean of its divisors is an integer number (1643096).

Almost surely, 2^40031156 is an apocalyptic number.

It is an amenable number.

40031156 is a deficient number, since it is larger than the sum of its proper divisors (38837452).

40031156 is a wasteful number, since it uses less digits than its factorization.

40031156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213 (or 189 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 40031156 is about 6327.0179389662. The cubic root of 40031156 is about 342.0839596426.

The spelling of 40031156 in words is "forty million, thirty-one thousand, one hundred fifty-six".