404504251242 has 32 divisors (see below), whose sum is σ = 995702773632. Its totient is φ = 106682439744.

The previous prime is 404504251237. The next prime is 404504251267. The reversal of 404504251242 is 242152405404.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 370424593 + ... + 370425684.

It is an arithmetic number, because the mean of its divisors is an integer number (31115711676).

Almost surely, 2^404504251242 is an apocalyptic number.

404504251242 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

404504251242 is an abundant number, since it is smaller than the sum of its proper divisors (591198522390).

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

404504251242 is a wasteful number, since it uses less digits than its factorization.

404504251242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740850302.

The product of its (nonzero) digits is 51200, while the sum is 33.

Adding to 404504251242 its reverse (242152405404), we get a palindrome (646656656646).

The spelling of 404504251242 in words is "four hundred four billion, five hundred four million, two hundred fifty-one thousand, two hundred forty-two".