504042240405 has 16 divisors (see below), whose sum is σ = 879782819904. Its totient is φ = 244384116480.

The previous prime is 504042240353. The next prime is 504042240409.

504042240405 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 504042240405 - 2⁶ = 504042240341 is a prime.

It is a super-2 number, since 2×504042240405² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504042240409) 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, 1527400564 + ... + 1527400893.

It is an arithmetic number, because the mean of its divisors is an integer number (54986426244).

Almost surely, 2^504042240405 is an apocalyptic number.

504042240405 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

504042240405 is a deficient number, since it is larger than the sum of its proper divisors (375740579499).

504042240405 is a wasteful number, since it uses less digits than its factorization.

504042240405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3054801476.

The product of its (nonzero) digits is 25600, while the sum is 30.

It can be divided in two parts, 504042 and 240405, that added together give a palindrome (744447).

The spelling of 504042240405 in words is "five hundred four billion, forty-two million, two hundred forty thousand, four hundred five".