1141409280 has 320 divisors, whose sum is σ = 4065811200. Its totient is φ = 270827520.

The previous prime is 1141409279. The next prime is 1141409299. The reversal of 1141409280 is 829041411.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4984206 + ... + 4984434.

It is an arithmetic number, because the mean of its divisors is an integer number (12705660).

Almost surely, 2^1141409280 is an apocalyptic number.

1141409280 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 1141409280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2032905600).

1141409280 is an abundant number, since it is smaller than the sum of its proper divisors (2924401920).

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

1141409280 is a wasteful number, since it uses less digits than its factorization.

1141409280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325 (or 309 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 1141409280 is about 33784.7492220972. The cubic root of 1141409280 is about 1045.0742161678.

The spelling of 1141409280 in words is "one billion, one hundred forty-one million, four hundred nine thousand, two hundred eighty".