1328049975 has 24 divisors (see below), whose sum is σ = 2509383040. Its totient is φ = 607108320.

The previous prime is 1328049949. The next prime is 1328049977. The reversal of 1328049975 is 5799408231.

It is not a de Polignac number, because 1328049975 - 2¹¹ = 1328047927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328049977) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1264285 + ... + 1265334.

Almost surely, 2^1328049975 is an apocalyptic number.

1328049975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1328049975 is a deficient number, since it is larger than the sum of its proper divisors (1181333065).

1328049975 is a wasteful number, since it uses less digits than its factorization.

1328049975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2529639 (or 2529634 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 1328049975 is about 36442.4199937381. The cubic root of 1328049975 is about 1099.1867197896.

The spelling of 1328049975 in words is "one billion, three hundred twenty-eight million, forty-nine thousand, nine hundred seventy-five".