401422209 has 8 divisors (see below), whose sum is σ = 540426432. Its totient is φ = 265016400.

The previous prime is 401422201. The next prime is 401422211. The reversal of 401422209 is 902224104.

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

It is not a de Polignac number, because 401422209 - 2³ = 401422201 is a prime.

It is a super-2 number, since 2×401422209² = 322279579756879362, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401422201) 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 7 ways as a sum of consecutive naturals, for example, 649242 + ... + 649859.

It is an arithmetic number, because the mean of its divisors is an integer number (67553304).

Almost surely, 2^401422209 is an apocalyptic number.

It is an amenable number.

401422209 is a deficient number, since it is larger than the sum of its proper divisors (139004223).

401422209 is a wasteful number, since it uses less digits than its factorization.

401422209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299207.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 401422209 is about 20035.5236767098. The cubic root of 401422209 is about 737.6785106139.

The spelling of 401422209 in words is "four hundred one million, four hundred twenty-two thousand, two hundred nine".