404045252128 has 48 divisors (see below), whose sum is σ = 927654940800. Its totient is φ = 173162246208.

The previous prime is 404045252123. The next prime is 404045252131. The reversal of 404045252128 is 821252540404.

It is not an unprimeable number, because it can be changed into a prime (404045252123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18394876 + ... + 18416827.

It is an arithmetic number, because the mean of its divisors is an integer number (19326144600).

Almost surely, 2^404045252128 is an apocalyptic number.

It is an amenable number.

404045252128 is an abundant number, since it is smaller than the sum of its proper divisors (523609688672).

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

404045252128 is an equidigital number, since it uses as much as digits as its factorization.

404045252128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36811734 (or 36811712 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 37.

The spelling of 404045252128 in words is "four hundred four billion, forty-five million, two hundred fifty-two thousand, one hundred twenty-eight".