2042240442440 has 32 divisors (see below), whose sum is σ = 5012771996160. Its totient is φ = 742632888000.

The previous prime is 2042240442413. The next prime is 2042240442449. The reversal of 2042240442440 is 442440422402.

It is a junction number, because it is equal to n+sod(n) for n = 2042240442397 and 2042240442406.

It is not an unprimeable number, because it can be changed into a prime (2042240442449) 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, 2320727336 + ... + 2320728215.

It is an arithmetic number, because the mean of its divisors is an integer number (156649124880).

Almost surely, 2^{2042240442440} is an apocalyptic number.

2042240442440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2042240442440 is an abundant number, since it is smaller than the sum of its proper divisors (2970531553720).

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

2042240442440 is a wasteful number, since it uses less digits than its factorization.

2042240442440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4641455573 (or 4641455569 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 2042240442440 its reverse (442440422402), we get a palindrome (2484680864842).

The spelling of 2042240442440 in words is "two trillion, forty-two billion, two hundred forty million, four hundred forty-two thousand, four hundred forty".