523008420 has 96 divisors (see below), whose sum is σ = 1601147520. Its totient is φ = 126504960.

The previous prime is 523008419. The next prime is 523008439. The reversal of 523008420 is 24800325.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 562516 + ... + 563444.

It is an arithmetic number, because the mean of its divisors is an integer number (16678620).

Almost surely, 2^523008420 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 523008420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (800573760).

523008420 is an abundant number, since it is smaller than the sum of its proper divisors (1078139100).

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

523008420 is a wasteful number, since it uses less digits than its factorization.

523008420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1805 (or 1803 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 523008420 is about 22869.3773417642. The cubic root of 523008420 is about 805.6929439726.

Adding to 523008420 its reverse (24800325), we get a palindrome (547808745).

The spelling of 523008420 in words is "five hundred twenty-three million, eight thousand, four hundred twenty".