531440410242 has 48 divisors (see below), whose sum is σ = 1247967712800. Its totient is φ = 150421041792.

The previous prime is 531440410153. The next prime is 531440410243. The reversal of 531440410242 is 242014044135.

531440410242 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (531440410243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8415367 + ... + 8478282.

It is an arithmetic number, because the mean of its divisors is an integer number (25999327350).

Almost surely, 2^531440410242 is an apocalyptic number.

531440410242 is an abundant number, since it is smaller than the sum of its proper divisors (716527302558).

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

531440410242 is a wasteful number, since it uses less digits than its factorization.

531440410242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16893775 (or 16893768 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 531440410242 its reverse (242014044135), we get a palindrome (773454454377).

The spelling of 531440410242 in words is "five hundred thirty-one billion, four hundred forty million, four hundred ten thousand, two hundred forty-two".