1943440002042 has 96 divisors (see below), whose sum is σ = 4948378366464. Its totient is φ = 503166232800.

The previous prime is 1943440002041. The next prime is 1943440002059. The reversal of 1943440002042 is 2402000443491.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 1943440001994 and 1943440002012.

It is not an unprimeable number, because it can be changed into a prime (1943440002041) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39633 + ... + 1971915.

It is an arithmetic number, because the mean of its divisors is an integer number (51545607984).

Almost surely, 2^{1943440002042} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1943440002042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2474189183232).

1943440002042 is an abundant number, since it is smaller than the sum of its proper divisors (3004938364422).

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

1943440002042 is a wasteful number, since it uses less digits than its factorization.

1943440002042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932624 (or 1932617 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

The spelling of 1943440002042 in words is "one trillion, nine hundred forty-three billion, four hundred forty million, two thousand, forty-two".