1141309988 has 48 divisors (see below), whose sum is σ = 2464990080. Its totient is φ = 450261504.

The previous prime is 1141309987. The next prime is 1141310033. The reversal of 1141309988 is 8899031411.

It is not an unprimeable number, because it can be changed into a prime (1141309987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133820 + ... + 142092.

It is an arithmetic number, because the mean of its divisors is an integer number (51353960).

Almost surely, 2^1141309988 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 1141309988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1232495040).

1141309988 is an abundant number, since it is smaller than the sum of its proper divisors (1323680092).

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

1141309988 is a wasteful number, since it uses less digits than its factorization.

1141309988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8676 (or 8674 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 44.

The square root of 1141309988 is about 33783.2797105314. The cubic root of 1141309988 is about 1045.0439113741.

The spelling of 1141309988 in words is "one billion, one hundred forty-one million, three hundred nine thousand, nine hundred eighty-eight".