40538812 has 12 divisors (see below), whose sum is σ = 75116160. Its totient is φ = 19077056.

The previous prime is 40538803. The next prime is 40538833. The reversal of 40538812 is 21883504.

40538812 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 3 ways as a sum of consecutive naturals, for example, 298012 + ... + 298147.

It is an arithmetic number, because the mean of its divisors is an integer number (6259680).

Almost surely, 2^40538812 is an apocalyptic number.

It is an amenable number.

40538812 is a deficient number, since it is larger than the sum of its proper divisors (34577348).

40538812 is a wasteful number, since it uses less digits than its factorization.

40538812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596180 (or 596178 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 40538812 is about 6367.0096591728. The cubic root of 40538812 is about 343.5239381103.

The spelling of 40538812 in words is "forty million, five hundred thirty-eight thousand, eight hundred twelve".