144224401442440 has 64 divisors (see below), whose sum is σ = 354029524061760. Its totient is φ = 52441655397120.

The previous prime is 144224401442377. The next prime is 144224401442441. The reversal of 144224401442440 is 44244104422441.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 144224401442393 and 144224401442402.

It is not an unprimeable number, because it can be changed into a prime (144224401442441) 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, 4737514 + ... + 17632153.

It is an arithmetic number, because the mean of its divisors is an integer number (5531711313465).

Almost surely, 2^{144224401442440} is an apocalyptic number.

144224401442440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144224401442440 is an abundant number, since it is smaller than the sum of its proper divisors (209805122619320).

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

144224401442440 is a wasteful number, since it uses less digits than its factorization.

144224401442440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22384342 (or 22384338 counting only the distinct ones).

The product of its (nonzero) digits is 524288, while the sum is 40.

Adding to 144224401442440 its reverse (44244104422441), we get a palindrome (188468505864881).

The spelling of 144224401442440 in words is "one hundred forty-four trillion, two hundred twenty-four billion, four hundred one million, four hundred forty-two thousand, four hundred forty".