404131041240 has 32 divisors (see below), whose sum is σ = 1212393124080. Its totient is φ = 107768277632.

The previous prime is 404131041227. The next prime is 404131041269. The reversal of 404131041240 is 42140131404.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 404131041240.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1683879219 + ... + 1683879458.

Almost surely, 2^404131041240 is an apocalyptic number.

404131041240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

404131041240 is an abundant number, since it is smaller than the sum of its proper divisors (808262082840).

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

404131041240 is a wasteful number, since it uses less digits than its factorization.

404131041240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3367758691 (or 3367758687 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 404131041240 its reverse (42140131404), we get a palindrome (446271172644).

The spelling of 404131041240 in words is "four hundred four billion, one hundred thirty-one million, forty-one thousand, two hundred forty".