1328665270 has 32 divisors (see below), whose sum is σ = 2528983296. Its totient is φ = 501772800.

The previous prime is 1328665253. The next prime is 1328665271. The reversal of 1328665270 is 725668231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328665271) 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 15 ways as a sum of consecutive naturals, for example, 39559 + ... + 64978.

It is an arithmetic number, because the mean of its divisors is an integer number (79030728).

Almost surely, 2^1328665270 is an apocalyptic number.

1328665270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1328665270 is a deficient number, since it is larger than the sum of its proper divisors (1200318026).

1328665270 is a wasteful number, since it uses less digits than its factorization.

1328665270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104616.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 1328665270 is about 36450.8610323542. The cubic root of 1328665270 is about 1099.3564472557.

The spelling of 1328665270 in words is "one billion, three hundred twenty-eight million, six hundred sixty-five thousand, two hundred seventy".