1140321440 has 24 divisors (see below), whose sum is σ = 2694009780. Its totient is φ = 456128512.

The previous prime is 1140321433. The next prime is 1140321467. The reversal of 1140321440 is 441230411.

It can be written as a sum of positive squares in 2 ways, for example, as 1113156496 + 27164944 = 33364^2 + 5212^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3563345 + ... + 3563664.

Almost surely, 2^1140321440 is an apocalyptic number.

1140321440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1140321440 is an abundant number, since it is smaller than the sum of its proper divisors (1553688340).

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

1140321440 is an equidigital number, since it uses as much as digits as its factorization.

1140321440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7127024 (or 7127016 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1140321440 is about 33768.6458123508. The cubic root of 1140321440 is about 1044.7421019067.

Adding to 1140321440 its reverse (441230411), we get a palindrome (1581551851).

The spelling of 1140321440 in words is "one billion, one hundred forty million, three hundred twenty-one thousand, four hundred forty".