413816221 has 12 divisors (see below), whose sum is σ = 518407932. Its totient is φ = 327414528.

The previous prime is 413816203. The next prime is 413816279. The reversal of 413816221 is 122618314.

It can be written as a sum of positive squares in 2 ways, for example, as 108056025 + 305760196 = 10395^2 + 17486^2 .

It is not a de Polignac number, because 413816221 - 2⁹ = 413815709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 413816221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (413816201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 324180 + ... + 325453.

It is an arithmetic number, because the mean of its divisors is an integer number (43200661).

Almost surely, 2^413816221 is an apocalyptic number.

It is an amenable number.

413816221 is a deficient number, since it is larger than the sum of its proper divisors (104591711).

413816221 is a wasteful number, since it uses less digits than its factorization.

413816221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649660 (or 649653 counting only the distinct ones).

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

The square root of 413816221 is about 20342.4733255325. The cubic root of 413816221 is about 745.1936922619.

The spelling of 413816221 in words is "four hundred thirteen million, eight hundred sixteen thousand, two hundred twenty-one".