413242221 has 8 divisors (see below), whose sum is σ = 629702464. Its totient is φ = 236138400.

The previous prime is 413242201. The next prime is 413242231. The reversal of 413242221 is 122242314.

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

It is not a de Polignac number, because 413242221 - 2¹¹ = 413240173 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 19678201 = 413242221 / (4 + 1 + 3 + 2 + 4 + 2 + 2 + 2 + 1).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (413242201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9839080 + ... + 9839121.

It is an arithmetic number, because the mean of its divisors is an integer number (78712808).

Almost surely, 2^413242221 is an apocalyptic number.

It is an amenable number.

413242221 is a deficient number, since it is larger than the sum of its proper divisors (216460243).

413242221 is a wasteful number, since it uses less digits than its factorization.

413242221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19678211.

The product of its digits is 768, while the sum is 21.

The square root of 413242221 is about 20328.3600174731. The cubic root of 413242221 is about 744.8489827975.

Adding to 413242221 its reverse (122242314), we get a palindrome (535484535).

The spelling of 413242221 in words is "four hundred thirteen million, two hundred forty-two thousand, two hundred twenty-one".