531641420 has 24 divisors (see below), whose sum is σ = 1116929184. Its totient is φ = 212564736.

The previous prime is 531641381. The next prime is 531641423. The reversal of 531641420 is 24146135.

531641420 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 531641420.

It is not an unprimeable number, because it can be changed into a prime (531641423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60209 + ... + 68471.

It is an arithmetic number, because the mean of its divisors is an integer number (46538716).

Almost surely, 2^531641420 is an apocalyptic number.

It is an amenable number.

531641420 is an abundant number, since it is smaller than the sum of its proper divisors (585287764).

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

531641420 is a wasteful number, since it uses less digits than its factorization.

531641420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11489 (or 11487 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 531641420 is about 23057.3506717489. The cubic root of 531641420 is about 810.1018111115.

Adding to 531641420 its reverse (24146135), we get a palindrome (555787555).

The spelling of 531641420 in words is "five hundred thirty-one million, six hundred forty-one thousand, four hundred twenty".