1141881840 has 480 divisors, whose sum is σ = 4595330880. Its totient is φ = 259522560.

The previous prime is 1141881833. The next prime is 1141881847. The reversal of 1141881840 is 481881411.

It is an interprime number because it is at equal distance from previous prime (1141881833) and next prime (1141881847).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1141881795 and 1141881804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1141881847) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4442992 + ... + 4443248.

It is an arithmetic number, because the mean of its divisors is an integer number (9573606).

Almost surely, 2^1141881840 is an apocalyptic number.

1141881840 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 1141881840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2297665440).

1141881840 is an abundant number, since it is smaller than the sum of its proper divisors (3453449040).

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

1141881840 is a wasteful number, since it uses less digits than its factorization.

1141881840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 36.

The square root of 1141881840 is about 33791.7421865165. The cubic root of 1141881840 is about 1045.2184215639.

The spelling of 1141881840 in words is "one billion, one hundred forty-one million, eight hundred eighty-one thousand, eight hundred forty".