422318736 has 120 divisors (see below), whose sum is σ = 1357175040. Its totient is φ = 120089088.

The previous prime is 422318723. The next prime is 422318759. The reversal of 422318736 is 637813224.

It is a happy number.

It is a super-2 number, since 2×422318736² = 356706229553275392, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 422318736.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 240036 + ... + 241788.

It is an arithmetic number, because the mean of its divisors is an integer number (11309792).

Almost surely, 2^422318736 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 422318736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (678587520).

422318736 is an abundant number, since it is smaller than the sum of its proper divisors (934856304).

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

422318736 is a wasteful number, since it uses less digits than its factorization.

422318736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2013 (or 2004 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 422318736 is about 20550.3950326995. The cubic root of 422318736 is about 750.2628625270.

The spelling of 422318736 in words is "four hundred twenty-two million, three hundred eighteen thousand, seven hundred thirty-six".