422956436 has 72 divisors (see below), whose sum is σ = 896620032. Its totient is φ = 173880000.

The previous prime is 422956433. The next prime is 422956517. The reversal of 422956436 is 634659224.

It is a junction number, because it is equal to n+sod(n) for n = 422956393 and 422956402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422956433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 917246 + ... + 917706.

It is an arithmetic number, because the mean of its divisors is an integer number (12453056).

Almost surely, 2^422956436 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422956436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (448310016).

422956436 is an abundant number, since it is smaller than the sum of its proper divisors (473663596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422956436 is a wasteful number, since it uses less digits than its factorization.

422956436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661 (or 652 counting only the distinct ones).

The product of its digits is 311040, while the sum is 41.

The square root of 422956436 is about 20565.9046968520. The cubic root of 422956436 is about 750.6403041548.

The spelling of 422956436 in words is "four hundred twenty-two million, nine hundred fifty-six thousand, four hundred thirty-six".