422812831 has 8 divisors (see below), whose sum is σ = 511639200. Its totient is φ = 341092608.

The previous prime is 422812823. The next prime is 422812867. The reversal of 422812831 is 138218224.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 422812831 - 2³ = 422812823 is a prime.

It is a super-2 number, since 2×422812831² = 357541380116469122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 422812793 and 422812802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422812531) 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, 1776406 + ... + 1776643.

It is an arithmetic number, because the mean of its divisors is an integer number (63954900).

Almost surely, 2^422812831 is an apocalyptic number.

422812831 is a deficient number, since it is larger than the sum of its proper divisors (88826369).

422812831 is a wasteful number, since it uses less digits than its factorization.

422812831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3553073.

The product of its digits is 6144, while the sum is 31.

The square root of 422812831 is about 20562.4130636460. The cubic root of 422812831 is about 750.5553403983. Note that the first 3 decimals are identical.

The spelling of 422812831 in words is "four hundred twenty-two million, eight hundred twelve thousand, eight hundred thirty-one".