1670963328 has 48 divisors (see below), whose sum is σ = 4808374350. Its totient is φ = 556987392.

The previous prime is 1670963321. The next prime is 1670963339. The reversal of 1670963328 is 8233690761.

1670963328 is a `hidden beast` number, since 1 + 6 + 7 + 0 + 9 + 633 + 2 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1498618944 + 172344384 = 38712^2 + 13128^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (1670963321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 724093 + ... + 726396.

Almost surely, 2^1670963328 is an apocalyptic number.

1670963328 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1670963328 is an abundant number, since it is smaller than the sum of its proper divisors (3137411022).

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

1670963328 is a wasteful number, since it uses less digits than its factorization.

1670963328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450509 (or 1450494 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 1670963328 is about 40877.4183137830. The cubic root of 1670963328 is about 1186.6490782788.

The spelling of 1670963328 in words is "one billion, six hundred seventy million, nine hundred sixty-three thousand, three hundred twenty-eight".