1330404252 has 24 divisors (see below), whose sum is σ = 3107897856. Its totient is φ = 442950768.

The previous prime is 1330404247. The next prime is 1330404253. The reversal of 1330404252 is 2524040331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330404253) 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 7 ways as a sum of consecutive naturals, for example, 53878 + ... + 74589.

It is an arithmetic number, because the mean of its divisors is an integer number (129495744).

Almost surely, 2^1330404252 is an apocalyptic number.

1330404252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1330404252 is an abundant number, since it is smaller than the sum of its proper divisors (1777493604).

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

1330404252 is a wasteful number, since it uses less digits than its factorization.

1330404252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129337 (or 129335 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 1330404252 is about 36474.7070173291. The cubic root of 1330404252 is about 1099.8358576015.

Adding to 1330404252 its reverse (2524040331), we get a palindrome (3854444583).

The spelling of 1330404252 in words is "one billion, three hundred thirty million, four hundred four thousand, two hundred fifty-two".