404233404040 has 32 divisors (see below), whose sum is σ = 919744551000. Its totient is φ = 159876580864.

The previous prime is 404233404007. The next prime is 404233404049. The reversal of 404233404040 is 40404332404.

It can be written as a sum of positive squares in 4 ways, for example, as 134367699844 + 269865704196 = 366562^2 + 519486^2 .

It is not an unprimeable number, because it can be changed into a prime (404233404049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56770795 + ... + 56777914.

Almost surely, 2^404233404040 is an apocalyptic number.

404233404040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

404233404040 is an abundant number, since it is smaller than the sum of its proper divisors (515511146960).

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

404233404040 is a wasteful number, since it uses less digits than its factorization.

404233404040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113548809 (or 113548805 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 404233404040 its reverse (40404332404), we get a palindrome (444637736444).

The spelling of 404233404040 in words is "four hundred four billion, two hundred thirty-three million, four hundred four thousand, forty".