1440424442442 has 8 divisors (see below), whose sum is σ = 2880848884896. Its totient is φ = 480141480812.

The previous prime is 1440424442407. The next prime is 1440424442533. The reversal of 1440424442442 is 2442444240441.

It is a sphenic number, since it is the product of 3 distinct primes.

1440424442442 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 1440424442442.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120035370198 + ... + 120035370209.

It is an arithmetic number, because the mean of its divisors is an integer number (360106110612).

Almost surely, 2^{1440424442442} is an apocalyptic number.

1440424442442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1440424442442 is a wasteful number, since it uses less digits than its factorization.

1440424442442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240070740412.

The product of its (nonzero) digits is 524288, while the sum is 39.

Adding to 1440424442442 its reverse (2442444240441), we get a palindrome (3882868682883).

The spelling of 1440424442442 in words is "one trillion, four hundred forty billion, four hundred twenty-four million, four hundred forty-two thousand, four hundred forty-two".