2838193021940 has 12 divisors (see below), whose sum is σ = 5960205346116. Its totient is φ = 1135277208768.

The previous prime is 2838193021913. The next prime is 2838193021987. The reversal of 2838193021940 is 491203918382.

It can be written as a sum of positive squares in 2 ways, for example, as 1577023593616 + 1261169428324 = 1255796^2 + 1123018^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70954825529 + ... + 70954825568.

It is an arithmetic number, because the mean of its divisors is an integer number (496683778843).

Almost surely, 2^{2838193021940} is an apocalyptic number.

2838193021940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2838193021940 is an abundant number, since it is smaller than the sum of its proper divisors (3122012324176).

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

2838193021940 is a wasteful number, since it uses less digits than its factorization.

2838193021940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141909651106 (or 141909651104 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 50.

The spelling of 2838193021940 in words is "two trillion, eight hundred thirty-eight billion, one hundred ninety-three million, twenty-one thousand, nine hundred forty".