421672222 has 8 divisors (see below), whose sum is σ = 632705976. Its totient is φ = 210770232.

The previous prime is 421672211. The next prime is 421672243. The reversal of 421672222 is 222276124.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24508 + ... + 37999.

It is an arithmetic number, because the mean of its divisors is an integer number (79088247).

Almost surely, 2^421672222 is an apocalyptic number.

421672222 is a deficient number, since it is larger than the sum of its proper divisors (211033754).

421672222 is a wasteful number, since it uses less digits than its factorization.

421672222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65882.

The product of its digits is 5376, while the sum is 28.

The square root of 421672222 is about 20534.6590427014. The cubic root of 421672222 is about 749.8798160014.

The spelling of 421672222 in words is "four hundred twenty-one million, six hundred seventy-two thousand, two hundred twenty-two".