1328719970 has 64 divisors (see below), whose sum is σ = 2623276800. Its totient is φ = 482630400.

The previous prime is 1328719963. The next prime is 1328719979. The reversal of 1328719970 is 799178231.

It is not an unprimeable number, because it can be changed into a prime (1328719979) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 831212 + ... + 832808.

It is an arithmetic number, because the mean of its divisors is an integer number (40988700).

Almost surely, 2^1328719970 is an apocalyptic number.

1328719970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1328719970 is a deficient number, since it is larger than the sum of its proper divisors (1294556830).

1328719970 is a wasteful number, since it uses less digits than its factorization.

1328719970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1803.

The product of its (nonzero) digits is 190512, while the sum is 47.

The square root of 1328719970 is about 36451.6113498430. The cubic root of 1328719970 is about 1099.3715335667.

The spelling of 1328719970 in words is "one billion, three hundred twenty-eight million, seven hundred nineteen thousand, nine hundred seventy".