2042444523540 has 96 divisors (see below), whose sum is σ = 5805722724480. Its totient is φ = 536382038016.

The previous prime is 2042444523521. The next prime is 2042444523571. The reversal of 2042444523540 is 453254442402.

It is a super-2 number, since 2×2042444523540² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15729924 + ... + 15859236.

It is an arithmetic number, because the mean of its divisors is an integer number (60476278380).

Almost surely, 2^{2042444523540} is an apocalyptic number.

2042444523540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2042444523540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2902861362240).

2042444523540 is an abundant number, since it is smaller than the sum of its proper divisors (3763278200940).

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

2042444523540 is a wasteful number, since it uses less digits than its factorization.

2042444523540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133321 (or 133319 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 39.

Adding to 2042444523540 its reverse (453254442402), we get a palindrome (2495698965942).

The spelling of 2042444523540 in words is "two trillion, forty-two billion, four hundred forty-four million, five hundred twenty-three thousand, five hundred forty".