422854819 has 16 divisors (see below), whose sum is σ = 439084800. Its totient is φ = 406971936.

The previous prime is 422854777. The next prime is 422854841. The reversal of 422854819 is 918458224.

It is a cyclic number.

It is not a de Polignac number, because 422854819 - 2²³ = 414466211 is a prime.

It is a super-2 number, since 2×422854819² = 357612395903045522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422855819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1571817 + ... + 1572085.

It is an arithmetic number, because the mean of its divisors is an integer number (27442800).

Almost surely, 2^422854819 is an apocalyptic number.

422854819 is a deficient number, since it is larger than the sum of its proper divisors (16229981).

422854819 is a wasteful number, since it uses less digits than its factorization.

422854819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714.

The product of its digits is 184320, while the sum is 43.

The square root of 422854819 is about 20563.4340274187. The cubic root of 422854819 is about 750.5801845469.

The spelling of 422854819 in words is "four hundred twenty-two million, eight hundred fifty-four thousand, eight hundred nineteen".