440424400240 has 80 divisors (see below), whose sum is σ = 1140844124160. Its totient is φ = 156746773760.

The previous prime is 440424400217. The next prime is 440424400279. The reversal of 440424400240 is 42004424044.

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

It is a junction number, because it is equal to n+sod(n) for n = 440424400199 and 440424400208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5282920 + ... + 5365639.

It is an arithmetic number, because the mean of its divisors is an integer number (14260551552).

Almost surely, 2^440424400240 is an apocalyptic number.

440424400240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

440424400240 is an abundant number, since it is smaller than the sum of its proper divisors (700419723920).

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

440424400240 is a wasteful number, since it uses less digits than its factorization.

440424400240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10648630 (or 10648624 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 440424400240 its reverse (42004424044), we get a palindrome (482428824284).

The spelling of 440424400240 in words is "four hundred forty billion, four hundred twenty-four million, four hundred thousand, two hundred forty".