404790428144 has 60 divisors (see below), whose sum is σ = 841431691800. Its totient is φ = 188124648192.

The previous prime is 404790428137. The next prime is 404790428149. The reversal of 404790428144 is 441824097404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404790428149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 616922 + ... + 1090950.

It is an arithmetic number, because the mean of its divisors is an integer number (14023861530).

Almost surely, 2^404790428144 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 404790428144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (420715845900).

404790428144 is an abundant number, since it is smaller than the sum of its proper divisors (436641263656).

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

404790428144 is a wasteful number, since it uses less digits than its factorization.

404790428144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474162 (or 474103 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 47.

The spelling of 404790428144 in words is "four hundred four billion, seven hundred ninety million, four hundred twenty-eight thousand, one hundred forty-four".