423244556 has 36 divisors (see below), whose sum is σ = 872019288. Its totient is φ = 179198208.

The previous prime is 423244553. The next prime is 423244567. The reversal of 423244556 is 655442324.

It is not an unprimeable number, because it can be changed into a prime (423244553) 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 11 ways as a sum of consecutive naturals, for example, 3260 + ... + 29276.

It is an arithmetic number, because the mean of its divisors is an integer number (24222758).

Almost surely, 2^423244556 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 423244556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (436009644).

423244556 is an abundant number, since it is smaller than the sum of its proper divisors (448774732).

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

423244556 is a wasteful number, since it uses less digits than its factorization.

423244556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26118 (or 26109 counting only the distinct ones).

The product of its digits is 115200, while the sum is 35.

The square root of 423244556 is about 20572.9083019392. The cubic root of 423244556 is about 750.8107120862.

The spelling of 423244556 in words is "four hundred twenty-three million, two hundred forty-four thousand, five hundred fifty-six".