523210420 has 48 divisors (see below), whose sum is σ = 1130427648. Its totient is φ = 203333760.

The previous prime is 523210399. The next prime is 523210421. The reversal of 523210420 is 24012325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523210421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98677 + ... + 103843.

It is an arithmetic number, because the mean of its divisors is an integer number (23550576).

Almost surely, 2^523210420 is an apocalyptic number.

It is an amenable number.

523210420 is an abundant number, since it is smaller than the sum of its proper divisors (607217228).

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

523210420 is a wasteful number, since it uses less digits than its factorization.

523210420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5320 (or 5318 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 523210420 is about 22873.7933015055. The cubic root of 523210420 is about 805.7966574248.

Adding to 523210420 its reverse (24012325), we get a palindrome (547222745).

The spelling of 523210420 in words is "five hundred twenty-three million, two hundred ten thousand, four hundred twenty".