1042244450040 has 128 divisors (see below), whose sum is σ = 3212380445760. Its totient is φ = 270324117504.

The previous prime is 1042244450017. The next prime is 1042244450123. The reversal of 1042244450040 is 400544422401.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12911244 + ... + 12991716.

Almost surely, 2^{1042244450040} is an apocalyptic number.

1042244450040 is a gapful number since it is divisible by the number (10) 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 1042244450040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1606190222880).

1042244450040 is an abundant number, since it is smaller than the sum of its proper divisors (2170135995720).

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

1042244450040 is a wasteful number, since it uses less digits than its factorization.

1042244450040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83441 (or 83437 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 30.

Adding to 1042244450040 its reverse (400544422401), we get a palindrome (1442788872441).

The spelling of 1042244450040 in words is "one trillion, forty-two billion, two hundred forty-four million, four hundred fifty thousand, forty".