421422231 has 48 divisors (see below), whose sum is σ = 629687520. Its totient is φ = 249661440.

The previous prime is 421422227. The next prime is 421422233. The reversal of 421422231 is 132224124.

It is not a de Polignac number, because 421422231 - 2² = 421422227 is a prime.

It is a super-2 number, since 2×421422231² = 355193393562034722, which contains 22 as substring.

Its product of digits (768) is a multiple of the sum of its prime factors (256).

It is a junction number, because it is equal to n+sod(n) for n = 421422198 and 421422207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421422233) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3866205 + ... + 3866313.

It is an arithmetic number, because the mean of its divisors is an integer number (13118490).

Almost surely, 2^421422231 is an apocalyptic number.

421422231 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

421422231 is a deficient number, since it is larger than the sum of its proper divisors (208265289).

421422231 is a wasteful number, since it uses less digits than its factorization.

421422231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256 (or 213 counting only the distinct ones).

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

The square root of 421422231 is about 20528.5710900686. The cubic root of 421422231 is about 749.7315964019.

Adding to 421422231 its reverse (132224124), we get a palindrome (553646355).

The spelling of 421422231 in words is "four hundred twenty-one million, four hundred twenty-two thousand, two hundred thirty-one".