404450232040 has 32 divisors (see below), whose sum is σ = 963543201480. Its totient is φ = 152263616512.

The previous prime is 404450232019. The next prime is 404450232097. The reversal of 404450232040 is 40232054404.

It can be written as a sum of positive squares in 4 ways, for example, as 403176741444 + 1273490596 = 634962^2 + 35686^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 297389197 + ... + 297390556.

Almost surely, 2^404450232040 is an apocalyptic number.

404450232040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

404450232040 is an abundant number, since it is smaller than the sum of its proper divisors (559092969440).

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

404450232040 is a wasteful number, since it uses less digits than its factorization.

404450232040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594779781 (or 594779777 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 28.

Adding to 404450232040 its reverse (40232054404), we get a palindrome (444682286444).

The spelling of 404450232040 in words is "four hundred four billion, four hundred fifty million, two hundred thirty-two thousand, forty".