1328700744 has 48 divisors (see below), whose sum is σ = 4112646720. Its totient is φ = 379628640.

The previous prime is 1328700727. The next prime is 1328700749. The reversal of 1328700744 is 4470078231.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1328700699 and 1328700708.

It is not an unprimeable number, because it can be changed into a prime (1328700749) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1317652 + ... + 1318659.

It is an arithmetic number, because the mean of its divisors is an integer number (85680140).

Almost surely, 2^1328700744 is an apocalyptic number.

1328700744 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1328700744 is an abundant number, since it is smaller than the sum of its proper divisors (2783945976).

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

1328700744 is a wasteful number, since it uses less digits than its factorization.

1328700744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2636330 (or 2636323 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 1328700744 is about 36451.3476294087. The cubic root of 1328700744 is about 1099.3662310651.

Adding to 1328700744 its reverse (4470078231), we get a palindrome (5798778975).

The spelling of 1328700744 in words is "one billion, three hundred twenty-eight million, seven hundred thousand, seven hundred forty-four".