523443120 has 80 divisors (see below), whose sum is σ = 1637118432. Its totient is φ = 138342400.

The previous prime is 523443079. The next prime is 523443143. The reversal of 523443120 is 21344325.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17470 + ... + 36770.

Almost surely, 2^523443120 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 523443120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (818559216).

523443120 is an abundant number, since it is smaller than the sum of its proper divisors (1113675312).

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

523443120 is a wasteful number, since it uses less digits than its factorization.

523443120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19430 (or 19424 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 523443120 is about 22878.8793431846. The cubic root of 523443120 is about 805.9161001853.

Adding to 523443120 its reverse (21344325), we get a palindrome (544787445).

The spelling of 523443120 in words is "five hundred twenty-three million, four hundred forty-three thousand, one hundred twenty".