1140303240 has 192 divisors, whose sum is σ = 3992788800. Its totient is φ = 281304576.

The previous prime is 1140303167. The next prime is 1140303247. The reversal of 1140303240 is 423030411.

1140303240 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1140303247) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 292182 + ... + 296058.

It is an arithmetic number, because the mean of its divisors is an integer number (20795775).

Almost surely, 2^1140303240 is an apocalyptic number.

1140303240 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 1140303240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1996394400).

1140303240 is an abundant number, since it is smaller than the sum of its proper divisors (2852485560).

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

1140303240 is a wasteful number, since it uses less digits than its factorization.

1140303240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3956 (or 3949 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1140303240 is about 33768.3763305256. The cubic root of 1140303240 is about 1044.7365437056.

Adding to 1140303240 its reverse (423030411), we get a palindrome (1563333651).

The spelling of 1140303240 in words is "one billion, one hundred forty million, three hundred three thousand, two hundred forty".