2044121042440 has 32 divisors (see below), whose sum is σ = 4599368930880. Its totient is φ = 817631246272.

The previous prime is 2044121042429. The next prime is 2044121042441. The reversal of 2044121042440 is 442401214402.

It is a happy number.

It is a super-2 number, since 2×2044121042440² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2044121042399 and 2044121042408.

It is not an unprimeable number, because it can be changed into a prime (2044121042441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1486107 + ... + 2509333.

It is an arithmetic number, because the mean of its divisors is an integer number (143730279090).

Almost surely, 2^{2044121042440} is an apocalyptic number.

2044121042440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2044121042440 is an abundant number, since it is smaller than the sum of its proper divisors (2555247888440).

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

2044121042440 is a wasteful number, since it uses less digits than its factorization.

2044121042440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073181 (or 1073177 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 2044121042440 its reverse (442401214402), we get a palindrome (2486522256842).

The spelling of 2044121042440 in words is "two trillion, forty-four billion, one hundred twenty-one million, forty-two thousand, four hundred forty".