40050040 has 32 divisors (see below), whose sum is σ = 90396000. Its totient is φ = 15969664.

The previous prime is 40050037. The next prime is 40050041. The reversal of 40050040 is 4005004.

40050040 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 40050040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40050041) 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, 12966 + ... + 15754.

It is an arithmetic number, because the mean of its divisors is an integer number (2824875).

Almost surely, 2^40050040 is an apocalyptic number.

40050040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40050040 is an abundant number, since it is smaller than the sum of its proper divisors (50345960).

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

40050040 is a wasteful number, since it uses less digits than its factorization.

40050040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3159 (or 3155 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 40050040 is about 6328.5100932210. The cubic root of 40050040 is about 342.1377419014.

Adding to 40050040 its reverse (4005004), we get a palindrome (44055044).

The spelling of 40050040 in words is "forty million, fifty thousand, forty", and thus it is an eban number.