404022440240 has 80 divisors (see below), whose sum is σ = 988923014400. Its totient is φ = 153082918656.

The previous prime is 404022440231. The next prime is 404022440243. The reversal of 404022440240 is 42044220404.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (404022440243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16560371 + ... + 16584749.

It is an arithmetic number, because the mean of its divisors is an integer number (12361537680).

Almost surely, 2^404022440240 is an apocalyptic number.

404022440240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

404022440240 is an abundant number, since it is smaller than the sum of its proper divisors (584900574160).

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

404022440240 is a wasteful number, since it uses less digits than its factorization.

404022440240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35314 (or 35308 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 404022440240 its reverse (42044220404), we get a palindrome (446066660644).

The spelling of 404022440240 in words is "four hundred four billion, twenty-two million, four hundred forty thousand, two hundred forty".