404841747420 has 144 divisors (see below), whose sum is σ = 1339941657600. Its totient is φ = 98122684800.

The previous prime is 404841747407. The next prime is 404841747481. The reversal of 404841747420 is 24747148404.

404841747420 is a `hidden beast` number, since 404 + 8 + 4 + 174 + 74 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10671085 + ... + 10708955.

It is an arithmetic number, because the mean of its divisors is an integer number (9305150400).

Almost surely, 2^404841747420 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 404841747420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (669970828800).

404841747420 is an abundant number, since it is smaller than the sum of its proper divisors (935099910180).

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

404841747420 is a wasteful number, since it uses less digits than its factorization.

404841747420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43296 (or 43291 counting only the distinct ones).

The product of its (nonzero) digits is 802816, while the sum is 45.

The spelling of 404841747420 in words is "four hundred four billion, eight hundred forty-one million, seven hundred forty-seven thousand, four hundred twenty".