404425413440 has 56 divisors (see below), whose sum is σ = 963115723752. Its totient is φ = 161757112320.

The previous prime is 404425413409. The next prime is 404425413443. The reversal of 404425413440 is 44314524404.

It can be written as a sum of positive squares in 4 ways, for example, as 33729526336 + 370695887104 = 183656^2 + 608848^2 .

It is a super-2 number, since 2×404425413440² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 404425413440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404425413443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4576070 + ... + 4663610.

It is an arithmetic number, because the mean of its divisors is an integer number (17198495067).

Almost surely, 2^404425413440 is an apocalyptic number.

404425413440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

404425413440 is an abundant number, since it is smaller than the sum of its proper divisors (558690310312).

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

404425413440 is a wasteful number, since it uses less digits than its factorization.

404425413440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101995 (or 101985 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 35.

Adding to 404425413440 its reverse (44314524404), we get a palindrome (448739937844).

The spelling of 404425413440 in words is "four hundred four billion, four hundred twenty-five million, four hundred thirteen thousand, four hundred forty".