421343222 has 16 divisors (see below), whose sum is σ = 635454720. Its totient is φ = 209528808.

The previous prime is 421343191. The next prime is 421343231. The reversal of 421343222 is 222343124.

It is a super-2 number, since 2×421343222² = 355060221450682568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 464093 + ... + 464999.

It is an arithmetic number, because the mean of its divisors is an integer number (39715920).

Almost surely, 2^421343222 is an apocalyptic number.

421343222 is a deficient number, since it is larger than the sum of its proper divisors (214111498).

421343222 is a wasteful number, since it uses less digits than its factorization.

421343222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1915.

The product of its digits is 2304, while the sum is 23.

The square root of 421343222 is about 20526.6466330962. The cubic root of 421343222 is about 749.6847397962.

Adding to 421343222 its reverse (222343124), we get a palindrome (643686346).

The spelling of 421343222 in words is "four hundred twenty-one million, three hundred forty-three thousand, two hundred twenty-two".