404574204420 has 144 divisors (see below), whose sum is σ = 1296947695680. Its totient is φ = 101800800000.

The previous prime is 404574204407. The next prime is 404574204431. The reversal of 404574204420 is 24402475404.

404574204420 is a `hidden beast` number, since 4 + 0 + 4 + 574 + 20 + 44 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 622770 + ... + 1094070.

It is an arithmetic number, because the mean of its divisors is an integer number (9006581220).

Almost surely, 2^404574204420 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 404574204420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (648473847840).

404574204420 is an abundant number, since it is smaller than the sum of its proper divisors (892373491260).

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

404574204420 is a wasteful number, since it uses less digits than its factorization.

404574204420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471586 (or 471581 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 36.

Adding to 404574204420 its reverse (24402475404), we get a palindrome (428976679824).

The spelling of 404574204420 in words is "four hundred four billion, five hundred seventy-four million, two hundred four thousand, four hundred twenty".