440200231440 has 80 divisors (see below), whose sum is σ = 1364786273088. Its totient is φ = 117372487168.

The previous prime is 440200231439. The next prime is 440200231441. The reversal of 440200231440 is 44132002044.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (440200231439) and next prime (440200231441).

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

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 440200231440.

It is not an unprimeable number, because it can be changed into a prime (440200231441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1950547 + ... + 2164493.

Almost surely, 2^440200231440 is an apocalyptic number.

440200231440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

440200231440 is an abundant number, since it is smaller than the sum of its proper divisors (924586041648).

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

440200231440 is a wasteful number, since it uses less digits than its factorization.

440200231440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222536 (or 222530 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 440200231440 its reverse (44132002044), we get a palindrome (484332233484).

The spelling of 440200231440 in words is "four hundred forty billion, two hundred million, two hundred thirty-one thousand, four hundred forty".