404142400442 has 16 divisors (see below), whose sum is σ = 671194436832. Its totient is φ = 180959283120.

The previous prime is 404142400429. The next prime is 404142400451. The reversal of 404142400442 is 244004241404.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137088893 + ... + 137091840.

It is an arithmetic number, because the mean of its divisors is an integer number (41949652302).

Almost surely, 2^404142400442 is an apocalyptic number.

404142400442 is a deficient number, since it is larger than the sum of its proper divisors (267052036390).

404142400442 is a wasteful number, since it uses less digits than its factorization.

404142400442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274180813.

The product of its (nonzero) digits is 16384, while the sum is 29.

Adding to 404142400442 its reverse (244004241404), we get a palindrome (648146641846).

The spelling of 404142400442 in words is "four hundred four billion, one hundred forty-two million, four hundred thousand, four hundred forty-two".