1140304128 has 72 divisors (see below), whose sum is σ = 3139584000. Its totient is φ = 366987264.

The previous prime is 1140304127. The next prime is 1140304159. The reversal of 1140304128 is 8214030411.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 1140304098 and 1140304107.

It is not an unprimeable number, because it can be changed into a prime (1140304127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3328 + ... + 47871.

Almost surely, 2^1140304128 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 1140304128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1569792000).

1140304128 is an abundant number, since it is smaller than the sum of its proper divisors (1999279872).

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

1140304128 is an equidigital number, since it uses as much as digits as its factorization.

1140304128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51247 (or 51233 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 1140304128 is about 33768.3894789195. The cubic root of 1140304128 is about 1044.7368148983.

Adding to 1140304128 its reverse (8214030411), we get a palindrome (9354334539).

The spelling of 1140304128 in words is "one billion, one hundred forty million, three hundred four thousand, one hundred twenty-eight".