404405043040 has 24 divisors (see below), whose sum is σ = 955406914560. Its totient is φ = 161762017152.

The previous prime is 404405043019. The next prime is 404405043059. The reversal of 404405043040 is 40340504404.

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, 1263765600 + ... + 1263765919.

It is an arithmetic number, because the mean of its divisors is an integer number (39808621440).

Almost surely, 2^404405043040 is an apocalyptic number.

404405043040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

404405043040 is an abundant number, since it is smaller than the sum of its proper divisors (551001871520).

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

404405043040 is a wasteful number, since it uses less digits than its factorization.

404405043040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2527531534 (or 2527531526 counting only the distinct ones).

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

Adding to 404405043040 its reverse (40340504404), we get a palindrome (444745547444).

The spelling of 404405043040 in words is "four hundred four billion, four hundred five million, forty-three thousand, forty".