1141199280 has 800 divisors, whose sum is σ = 4839690240. Its totient is φ = 246343680.

The previous prime is 1141199263. The next prime is 1141199321. The reversal of 1141199280 is 829911411.

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

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 36812865 + ... + 36812895.

Almost surely, 2^1141199280 is an apocalyptic number.

1141199280 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 1141199280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2419845120).

1141199280 is an abundant number, since it is smaller than the sum of its proper divisors (3698490960).

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

1141199280 is a wasteful number, since it uses less digits than its factorization.

1141199280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 36.

The square root of 1141199280 is about 33781.6411679480. The cubic root of 1141199280 is about 1045.0101202442.

The spelling of 1141199280 in words is "one billion, one hundred forty-one million, one hundred ninety-nine thousand, two hundred eighty".