420414221 has 8 divisors (see below), whose sum is σ = 427413120. Its totient is φ = 413457408.

The previous prime is 420414161. The next prime is 420414223. The reversal of 420414221 is 122414024.

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 420414221 - 2²² = 416219917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 420414193 and 420414202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420414223) 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, 9950 + ... + 30656.

It is an arithmetic number, because the mean of its divisors is an integer number (53426640).

Almost surely, 2^420414221 is an apocalyptic number.

It is an amenable number.

420414221 is a deficient number, since it is larger than the sum of its proper divisors (6998899).

420414221 is a wasteful number, since it uses less digits than its factorization.

420414221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21043.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 420414221 is about 20504.0049990240. The cubic root of 420414221 is about 749.1333521329.

Adding to 420414221 its reverse (122414024), we get a palindrome (542828245).

The spelling of 420414221 in words is "four hundred twenty million, four hundred fourteen thousand, two hundred twenty-one".