423338544 has 120 divisors (see below), whose sum is σ = 1253491200. Its totient is φ = 133004160.

The previous prime is 423338543. The next prime is 423338561. The reversal of 423338544 is 445833324.

423338544 is a `hidden beast` number, since 4 + 233 + 385 + 44 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 423338499 and 423338508.

It is not an unprimeable number, because it can be changed into a prime (423338543) 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 23 ways as a sum of consecutive naturals, for example, 982009 + ... + 982439.

It is an arithmetic number, because the mean of its divisors is an integer number (10445760).

Almost surely, 2^423338544 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 423338544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (626745600).

423338544 is an abundant number, since it is smaller than the sum of its proper divisors (830152656).

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

423338544 is a wasteful number, since it uses less digits than its factorization.

423338544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823 (or 814 counting only the distinct ones).

The product of its digits is 138240, while the sum is 36.

The square root of 423338544 is about 20575.1924413844. The cubic root of 423338544 is about 750.8662843500.

The spelling of 423338544 in words is "four hundred twenty-three million, three hundred thirty-eight thousand, five hundred forty-four".