404440853240 has 16 divisors (see below), whose sum is σ = 909991919880. Its totient is φ = 161776341280.

The previous prime is 404440853231. The next prime is 404440853261. The reversal of 404440853240 is 42358044404.

It is a junction number, because it is equal to n+sod(n) for n = 404440853194 and 404440853203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5055510626 + ... + 5055510705.

Almost surely, 2^404440853240 is an apocalyptic number.

404440853240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

404440853240 is an abundant number, since it is smaller than the sum of its proper divisors (505551066640).

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

404440853240 is a wasteful number, since it uses less digits than its factorization.

404440853240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10111021342 (or 10111021338 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 38.

Adding to 404440853240 its reverse (42358044404), we get a palindrome (446798897644).

The spelling of 404440853240 in words is "four hundred four billion, four hundred forty million, eight hundred fifty-three thousand, two hundred forty".