404240140104 has 64 divisors (see below), whose sum is σ = 1073704075200. Its totient is φ = 126584043264.

The previous prime is 404240140099. The next prime is 404240140181. The reversal of 404240140104 is 401041042404.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7822962 + ... + 7874465.

It is an arithmetic number, because the mean of its divisors is an integer number (16776626175).

Almost surely, 2^404240140104 is an apocalyptic number.

It is an amenable number.

404240140104 is an abundant number, since it is smaller than the sum of its proper divisors (669463935096).

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

404240140104 is a wasteful number, since it uses less digits than its factorization.

404240140104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15697502 (or 15697498 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 404240140104 its reverse (401041042404), we get a palindrome (805281182508).

The spelling of 404240140104 in words is "four hundred four billion, two hundred forty million, one hundred forty thousand, one hundred four".