1020244204040 has 64 divisors (see below), whose sum is σ = 2321660880000. Its totient is φ = 403480028160.

The previous prime is 1020244203989. The next prime is 1020244204043. The reversal of 1020244204040 is 404024420201.

It is a junction number, because it is equal to n+sod(n) for n = 1020244203997 and 1020244204015.

It is not an unprimeable number, because it can be changed into a prime (1020244204043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 959261 + ... + 1720659.

It is an arithmetic number, because the mean of its divisors is an integer number (36275951250).

Almost surely, 2^{1020244204040} is an apocalyptic number.

1020244204040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020244204040 is an abundant number, since it is smaller than the sum of its proper divisors (1301416675960).

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

1020244204040 is a wasteful number, since it uses less digits than its factorization.

1020244204040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761790 (or 761786 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 1020244204040 its reverse (404024420201), we get a palindrome (1424268624241).

The spelling of 1020244204040 in words is "one trillion, twenty billion, two hundred forty-four million, two hundred four thousand, forty".