1330232240 has 20 divisors (see below), whose sum is σ = 3092790144. Its totient is φ = 532092864.

The previous prime is 1330232173. The next prime is 1330232243. The reversal of 1330232240 is 422320331.

It is a tau number, because it is divible by the number of its divisors (20).

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

It is not an unprimeable number, because it can be changed into a prime (1330232243) by changing a digit.

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, 8313872 + ... + 8314031.

Almost surely, 2^1330232240 is an apocalyptic number.

1330232240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1330232240 is an abundant number, since it is smaller than the sum of its proper divisors (1762557904).

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

1330232240 is a wasteful number, since it uses less digits than its factorization.

1330232240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16627916 (or 16627910 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 1330232240 is about 36472.3489783699. The cubic root of 1330232240 is about 1099.7884551875.

Adding to 1330232240 its reverse (422320331), we get a palindrome (1752552571).

The spelling of 1330232240 in words is "one billion, three hundred thirty million, two hundred thirty-two thousand, two hundred forty".