40384782 has 24 divisors (see below), whose sum is σ = 88135320. Its totient is φ = 13363920.

The previous prime is 40384777. The next prime is 40384789. The reversal of 40384782 is 28748304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40384789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5569 + ... + 10572.

It is an arithmetic number, because the mean of its divisors is an integer number (3672305).

Almost surely, 2^40384782 is an apocalyptic number.

40384782 is an abundant number, since it is smaller than the sum of its proper divisors (47750538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40384782 is a wasteful number, since it uses less digits than its factorization.

40384782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16288 (or 16285 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 40384782 is about 6354.9022022373. The cubic root of 40384782 is about 343.0883049733.

The spelling of 40384782 in words is "forty million, three hundred eighty-four thousand, seven hundred eighty-two".