1328241684 has 72 divisors (see below), whose sum is σ = 3893278144. Its totient is φ = 344995200.

The previous prime is 1328241679. The next prime is 1328241703. The reversal of 1328241684 is 4861428231.

It is a super-2 number, since 2×1328241684² = 3528451942230311712, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55177 + ... + 75504.

Almost surely, 2^1328241684 is an apocalyptic number.

1328241684 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1328241684 is an abundant number, since it is smaller than the sum of its proper divisors (2565036460).

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

1328241684 is a wasteful number, since it uses less digits than its factorization.

1328241684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130717 (or 130704 counting only the distinct ones).

The product of its digits is 73728, while the sum is 39.

The square root of 1328241684 is about 36445.0501988953. The cubic root of 1328241684 is about 1099.2396078215.

The spelling of 1328241684 in words is "one billion, three hundred twenty-eight million, two hundred forty-one thousand, six hundred eighty-four".