409172222 has 8 divisors (see below), whose sum is σ = 613940472. Its totient is φ = 204525400.

The previous prime is 409172221. The next prime is 409172237. The reversal of 409172222 is 222271904.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409172221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21404 + ... + 35727.

It is an arithmetic number, because the mean of its divisors is an integer number (76742559).

Almost surely, 2^409172222 is an apocalyptic number.

409172222 is a deficient number, since it is larger than the sum of its proper divisors (204768250).

409172222 is a wasteful number, since it uses less digits than its factorization.

409172222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60714.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 409172222 is about 20228.0058829337. The cubic root of 409172222 is about 742.3955856151.

The spelling of 409172222 in words is "four hundred nine million, one hundred seventy-two thousand, two hundred twenty-two".