404555988480 has 320 divisors, whose sum is σ = 1479611155968. Its totient is φ = 92373811200.

The previous prime is 404555988457. The next prime is 404555988497. The reversal of 404555988480 is 84889555404.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60369130 + ... + 60375830.

Almost surely, 2^404555988480 is an apocalyptic number.

404555988480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 404555988480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (739805577984).

404555988480 is an abundant number, since it is smaller than the sum of its proper divisors (1075055167488).

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

404555988480 is a wasteful number, since it uses less digits than its factorization.

404555988480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7857 (or 7841 counting only the distinct ones).

The product of its (nonzero) digits is 36864000, while the sum is 60.

The spelling of 404555988480 in words is "four hundred four billion, five hundred fifty-five million, nine hundred eighty-eight thousand, four hundred eighty".