411638221 has 16 divisors (see below), whose sum is σ = 447914880. Its totient is φ = 376842240.

The previous prime is 411638207. The next prime is 411638233. The reversal of 411638221 is 122836114.

It is a cyclic number.

It is not a de Polignac number, because 411638221 - 2⁵ = 411638189 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 411638221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (411638281) 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 15 ways as a sum of consecutive naturals, for example, 95176 + ... + 99406.

It is an arithmetic number, because the mean of its divisors is an integer number (27994680).

Almost surely, 2^411638221 is an apocalyptic number.

It is an amenable number.

411638221 is a deficient number, since it is larger than the sum of its proper divisors (36276659).

411638221 is a wasteful number, since it uses less digits than its factorization.

411638221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4404.

The product of its digits is 2304, while the sum is 28.

The square root of 411638221 is about 20288.8693869323. The cubic root of 411638221 is about 743.8840225866.

The spelling of 411638221 in words is "four hundred eleven million, six hundred thirty-eight thousand, two hundred twenty-one".