40005336 has 128 divisors (see below), whose sum is σ = 122572800. Its totient is φ = 10627200.

The previous prime is 40005331. The next prime is 40005337. The reversal of 40005336 is 63350004.

40005336 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40005331) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 264861 + ... + 265011.

It is an arithmetic number, because the mean of its divisors is an integer number (957600).

Almost surely, 2^40005336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40005336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61286400).

40005336 is an abundant number, since it is smaller than the sum of its proper divisors (82567464).

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

40005336 is a wasteful number, since it uses less digits than its factorization.

40005336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 40005336 is about 6324.9771541089. The cubic root of 40005336 is about 342.0103960453.

The spelling of 40005336 in words is "forty million, five thousand, three hundred thirty-six".