422471905 has 8 divisors (see below), whose sum is σ = 508987584. Its totient is φ = 336630000.

The previous prime is 422471887. The next prime is 422471921. The reversal of 422471905 is 509174224.

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

It is not a de Polignac number, because 422471905 - 2⁵ = 422471873 is a prime.

It is a super-3 number, since 3×422471905³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian 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, 167061 + ... + 169570.

It is an arithmetic number, because the mean of its divisors is an integer number (63623448).

Almost surely, 2^422471905 is an apocalyptic number.

It is an amenable number.

422471905 is a deficient number, since it is larger than the sum of its proper divisors (86515679).

422471905 is a wasteful number, since it uses less digits than its factorization.

422471905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336887.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 422471905 is about 20554.1213628800. The cubic root of 422471905 is about 750.3535547873.

The spelling of 422471905 in words is "four hundred twenty-two million, four hundred seventy-one thousand, nine hundred five".