40050528021 has 24 divisors (see below), whose sum is σ = 70004286144. Its totient is φ = 21539779200.

The previous prime is 40050528017. The next prime is 40050528041. The reversal of 40050528021 is 12082505004.

It is a happy number.

It is not a de Polignac number, because 40050528021 - 2² = 40050528017 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40050528041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18696655 + ... + 18698796.

It is an arithmetic number, because the mean of its divisors is an integer number (2916845256).

Almost surely, 2^40050528021 is an apocalyptic number.

It is an amenable number.

40050528021 is a deficient number, since it is larger than the sum of its proper divisors (29953758123).

40050528021 is a wasteful number, since it uses less digits than its factorization.

40050528021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37395481 (or 37395478 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The spelling of 40050528021 in words is "forty billion, fifty million, five hundred twenty-eight thousand, twenty-one".