1669904316 has 48 divisors (see below), whose sum is σ = 4341281280. Its totient is φ = 555104880.

The previous prime is 1669904267. The next prime is 1669904323. The reversal of 1669904316 is 6134099661.

It is a congruent number.

It is an unprimeable number.

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, 18571 + ... + 60701.

It is an arithmetic number, because the mean of its divisors is an integer number (90443360).

Almost surely, 2^1669904316 is an apocalyptic number.

It is an amenable number.

1669904316 is an abundant number, since it is smaller than the sum of its proper divisors (2671376964).

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

1669904316 is a wasteful number, since it uses less digits than its factorization.

1669904316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42511 (or 42503 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 1669904316 is about 40864.4627518826. The cubic root of 1669904316 is about 1186.3983364525.

The spelling of 1669904316 in words is "one billion, six hundred sixty-nine million, nine hundred four thousand, three hundred sixteen".