1869141248 has 72 divisors (see below), whose sum is σ = 4094176968. Its totient is φ = 846323712.

The previous prime is 1869141229. The next prime is 1869141271. The reversal of 1869141248 is 8421419681.

It can be written as a sum of positive squares in 4 ways, for example, as 135424 + 1869005824 = 368^2 + 43232^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1869141199 and 1869141208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171086 + ... + 181682.

It is an arithmetic number, because the mean of its divisors is an integer number (56863569).

Almost surely, 2^1869141248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1869141248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2047088484).

1869141248 is an abundant number, since it is smaller than the sum of its proper divisors (2225035720).

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

1869141248 is a wasteful number, since it uses less digits than its factorization.

1869141248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10679 (or 10665 counting only the distinct ones).

The product of its digits is 110592, while the sum is 44.

The square root of 1869141248 is about 43233.5662188536. The cubic root of 1869141248 is about 1231.8203482350.

The spelling of 1869141248 in words is "one billion, eight hundred sixty-nine million, one hundred forty-one thousand, two hundred forty-eight".