422531986 has 16 divisors (see below), whose sum is σ = 637901784. Its totient is φ = 209902464.

The previous prime is 422531959. The next prime is 422531987. The reversal of 422531986 is 689135224.

It can be written as a sum of positive squares in 4 ways, for example, as 418407025 + 4124961 = 20455^2 + 2031^2 .

It is not an unprimeable number, because it can be changed into a prime (422531987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 340960 + ... + 342196.

Almost surely, 2^422531986 is an apocalyptic number.

422531986 is a deficient number, since it is larger than the sum of its proper divisors (215369798).

422531986 is a wasteful number, since it uses less digits than its factorization.

422531986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2205.

The product of its digits is 103680, while the sum is 40.

The square root of 422531986 is about 20555.5828426245. The cubic root of 422531986 is about 750.3891231131.

The spelling of 422531986 in words is "four hundred twenty-two million, five hundred thirty-one thousand, nine hundred eighty-six".