421205230 has 8 divisors (see below), whose sum is σ = 758169432. Its totient is φ = 168482088.

The previous prime is 421205221. The next prime is 421205237. The reversal of 421205230 is 32502124.

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

It is a junction number, because it is equal to n+sod(n) for n = 421205198 and 421205207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421205237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21060252 + ... + 21060271.

It is an arithmetic number, because the mean of its divisors is an integer number (94771179).

Almost surely, 2^421205230 is an apocalyptic number.

421205230 is a deficient number, since it is larger than the sum of its proper divisors (336964202).

421205230 is a wasteful number, since it uses less digits than its factorization.

421205230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42120530.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 421205230 is about 20523.2850684290. The cubic root of 421205230 is about 749.6028890335.

Adding to 421205230 its reverse (32502124), we get a palindrome (453707354).

The spelling of 421205230 in words is "four hundred twenty-one million, two hundred five thousand, two hundred thirty".