436214221 has 8 divisors (see below), whose sum is σ = 450074880. Its totient is φ = 422562192.

The previous prime is 436214183. The next prime is 436214249. The reversal of 436214221 is 122412634.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 436214221 - 2⁹ = 436213709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (436214281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47905 + ... + 56278.

It is an arithmetic number, because the mean of its divisors is an integer number (56259360).

Almost surely, 2^436214221 is an apocalyptic number.

It is an amenable number.

436214221 is a deficient number, since it is larger than the sum of its proper divisors (13860659).

436214221 is a wasteful number, since it uses less digits than its factorization.

436214221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104315.

The product of its digits is 2304, while the sum is 25.

The square root of 436214221 is about 20885.7420504994. The cubic root of 436214221 is about 758.4028213532.

Adding to 436214221 its reverse (122412634), we get a palindrome (558626855).

The spelling of 436214221 in words is "four hundred thirty-six million, two hundred fourteen thousand, two hundred twenty-one".