40585940 has 24 divisors (see below), whose sum is σ = 85671432. Its totient is φ = 16150400.

The previous prime is 40585939. The next prime is 40585949. The reversal of 40585940 is 4958504.

40585940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 26357956 + 14227984 = 5134^2 + 3772^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40585940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40585949) 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 7 ways as a sum of consecutive naturals, for example, 1211 + ... + 9090.

It is an arithmetic number, because the mean of its divisors is an integer number (3569643).

Almost surely, 2^40585940 is an apocalyptic number.

It is an amenable number.

40585940 is an abundant number, since it is smaller than the sum of its proper divisors (45085492).

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

40585940 is a wasteful number, since it uses less digits than its factorization.

40585940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10507 (or 10505 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 40585940 is about 6370.7095366215. The cubic root of 40585940 is about 343.6570066909.

The spelling of 40585940 in words is "forty million, five hundred eighty-five thousand, nine hundred forty".