1330140440 has 32 divisors (see below), whose sum is σ = 3003966000. Its totient is φ = 530073984.

The previous prime is 1330140421. The next prime is 1330140443. The reversal of 1330140440 is 440410331.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330140443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51050 + ... + 72569.

Almost surely, 2^1330140440 is an apocalyptic number.

1330140440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1330140440 is an abundant number, since it is smaller than the sum of its proper divisors (1673825560).

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

1330140440 is a wasteful number, since it uses less digits than its factorization.

1330140440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123899 (or 123895 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1330140440 is about 36471.0904690277. The cubic root of 1330140440 is about 1099.7631556195.

Adding to 1330140440 its reverse (440410331), we get a palindrome (1770550771).

The spelling of 1330140440 in words is "one billion, three hundred thirty million, one hundred forty thousand, four hundred forty".