523400430 has 32 divisors (see below), whose sum is σ = 1435613184. Its totient is φ = 119634336.

The previous prime is 523400419. The next prime is 523400431. The reversal of 523400430 is 34004325.

It is a happy number.

523400430 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 523400397 and 523400406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523400431) 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, 1245982 + ... + 1246401.

It is an arithmetic number, because the mean of its divisors is an integer number (44862912).

Almost surely, 2^523400430 is an apocalyptic number.

523400430 is an abundant number, since it is smaller than the sum of its proper divisors (912212754).

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

523400430 is a wasteful number, since it uses less digits than its factorization.

523400430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2492400.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 523400430 is about 22877.9463676266. The cubic root of 523400430 is about 805.8941904544.

Adding to 523400430 its reverse (34004325), we get a palindrome (557404755).

The spelling of 523400430 in words is "five hundred twenty-three million, four hundred thousand, four hundred thirty".