409642222 has 8 divisors (see below), whose sum is σ = 670323672. Its totient is φ = 186201000.

The previous prime is 409642199. The next prime is 409642231. The reversal of 409642222 is 222246904.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9310029 + ... + 9310072.

It is an arithmetic number, because the mean of its divisors is an integer number (83790459).

Almost surely, 2^409642222 is an apocalyptic number.

409642222 is a deficient number, since it is larger than the sum of its proper divisors (260681450).

409642222 is a wasteful number, since it uses less digits than its factorization.

409642222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18620114.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 409642222 is about 20239.6201051304. The cubic root of 409642222 is about 742.6797303612.

The spelling of 409642222 in words is "four hundred nine million, six hundred forty-two thousand, two hundred twenty-two".