1440220442001 has 96 divisors (see below), whose sum is σ = 2220563165184. Its totient is φ = 828089539200.

The previous prime is 1440220441999. The next prime is 1440220442009. The reversal of 1440220442001 is 1002440220441.

It is not a de Polignac number, because 1440220442001 - 2¹ = 1440220441999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1440220442009) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 879791755 + ... + 879793391.

It is an arithmetic number, because the mean of its divisors is an integer number (23130866304).

Almost surely, 2^{1440220442001} is an apocalyptic number.

1440220442001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1440220442001 is a deficient number, since it is larger than the sum of its proper divisors (780342723183).

1440220442001 is a wasteful number, since it uses less digits than its factorization.

1440220442001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2483 (or 2472 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 1440220442001 its reverse (1002440220441), we get a palindrome (2442660662442).

The spelling of 1440220442001 in words is "one trillion, four hundred forty billion, two hundred twenty million, four hundred forty-two thousand, one".