422871566 has 16 divisors (see below), whose sum is σ = 723283344. Its totient is φ = 183690624.

The previous prime is 422871563. The next prime is 422871587. The reversal of 422871566 is 665178224.

It is a super-2 number, since 2×422871566² = 357640722662584712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422871563) 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 7 ways as a sum of consecutive naturals, for example, 477920 + ... + 478803.

It is an arithmetic number, because the mean of its divisors is an integer number (45205209).

Almost surely, 2^422871566 is an apocalyptic number.

422871566 is a deficient number, since it is larger than the sum of its proper divisors (300411778).

422871566 is a wasteful number, since it uses less digits than its factorization.

422871566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956755.

The product of its digits is 161280, while the sum is 41.

The square root of 422871566 is about 20563.8412267747. The cubic root of 422871566 is about 750.5900932278.

The spelling of 422871566 in words is "four hundred twenty-two million, eight hundred seventy-one thousand, five hundred sixty-six".