404013142240 has 24 divisors (see below), whose sum is σ = 954481048920. Its totient is φ = 161605256832.

The previous prime is 404013142187. The next prime is 404013142249. The reversal of 404013142240 is 42241310404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404013142249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1262540910 + ... + 1262541229.

It is an arithmetic number, because the mean of its divisors is an integer number (39770043705).

Almost surely, 2^404013142240 is an apocalyptic number.

404013142240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

404013142240 is an abundant number, since it is smaller than the sum of its proper divisors (550467906680).

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

404013142240 is a wasteful number, since it uses less digits than its factorization.

404013142240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2525082154 (or 2525082146 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 404013142240 its reverse (42241310404), we get a palindrome (446254452644).

The spelling of 404013142240 in words is "four hundred four billion, thirteen million, one hundred forty-two thousand, two hundred forty".