423542342524 has 72 divisors (see below), whose sum is σ = 866484283392. Its totient is φ = 180620627040.

The previous prime is 423542342507. The next prime is 423542342533. The reversal of 423542342524 is 425243245324.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36994569 + ... + 37006015.

It is an arithmetic number, because the mean of its divisors is an integer number (12034503936).

Almost surely, 2^423542342524 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 423542342524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (433242141696).

423542342524 is an abundant number, since it is smaller than the sum of its proper divisors (442941940868).

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

423542342524 is a wasteful number, since it uses less digits than its factorization.

423542342524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12383 (or 12374 counting only the distinct ones).

The product of its digits is 921600, while the sum is 40.

Adding to 423542342524 its reverse (425243245324), we get a palindrome (848785587848).

The spelling of 423542342524 in words is "four hundred twenty-three billion, five hundred forty-two million, three hundred forty-two thousand, five hundred twenty-four".