40653688 has 24 divisors (see below), whose sum is σ = 77133600. Its totient is φ = 20087472.

The previous prime is 40653659. The next prime is 40653707. The reversal of 40653688 is 88635604.

40653688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 40653688.

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 5 ways as a sum of consecutive naturals, for example, 84633 + ... + 85111.

It is an arithmetic number, because the mean of its divisors is an integer number (3213900).

Almost surely, 2^40653688 is an apocalyptic number.

It is an amenable number.

40653688 is a deficient number, since it is larger than the sum of its proper divisors (36479912).

40653688 is a wasteful number, since it uses less digits than its factorization.

40653688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691 (or 584 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 40653688 is about 6376.0244667034. The cubic root of 40653688 is about 343.8481166530.

The spelling of 40653688 in words is "forty million, six hundred fifty-three thousand, six hundred eighty-eight".