40041800221 has 8 divisors (see below), whose sum is σ = 42400584000. Its totient is φ = 37683392448.

The previous prime is 40041800209. The next prime is 40041800231. The reversal of 40041800221 is 12200814004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40041800221 - 2⁹ = 40041799709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40041800192 and 40041800201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40041800231) 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 7 ways as a sum of consecutive naturals, for example, 142240 + ... + 316726.

It is an arithmetic number, because the mean of its divisors is an integer number (5300073000).

Almost surely, 2^40041800221 is an apocalyptic number.

It is an amenable number.

40041800221 is a deficient number, since it is larger than the sum of its proper divisors (2358783779).

40041800221 is a wasteful number, since it uses less digits than its factorization.

40041800221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188003.

The product of its (nonzero) digits is 512, while the sum is 22.

The spelling of 40041800221 in words is "forty billion, forty-one million, eight hundred thousand, two hundred twenty-one".