423522352 has 40 divisors (see below), whose sum is σ = 897799680. Its totient is φ = 191945280.

The previous prime is 423522317. The next prime is 423522353. The reversal of 423522352 is 253225324.

It is a happy number.

It is a super-2 number, since 2×423522352² = 358742365287223808, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 423522352.

It is not an unprimeable number, because it can be changed into a prime (423522353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59833 + ... + 66535.

It is an arithmetic number, because the mean of its divisors is an integer number (22444992).

Almost surely, 2^423522352 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 423522352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (448899840).

423522352 is an abundant number, since it is smaller than the sum of its proper divisors (474277328).

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

423522352 is a wasteful number, since it uses less digits than its factorization.

423522352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7081 (or 7075 counting only the distinct ones).

The product of its digits is 14400, while the sum is 28.

The square root of 423522352 is about 20579.6586949347. The cubic root of 423522352 is about 750.9749406976.

Adding to 423522352 its reverse (253225324), we get a palindrome (676747676).

The spelling of 423522352 in words is "four hundred twenty-three million, five hundred twenty-two thousand, three hundred fifty-two".