1669192988 has 12 divisors (see below), whose sum is σ = 3000036312. Its totient is φ = 812039760.

The previous prime is 1669192939. The next prime is 1669193003. The reversal of 1669192988 is 8892919661.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5639018 + ... + 5639313.

It is an arithmetic number, because the mean of its divisors is an integer number (250003026).

Almost surely, 2^1669192988 is an apocalyptic number.

It is an amenable number.

1669192988 is a deficient number, since it is larger than the sum of its proper divisors (1330843324).

1669192988 is a wasteful number, since it uses less digits than its factorization.

1669192988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11278372 (or 11278370 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 59.

The square root of 1669192988 is about 40855.7583211963. The cubic root of 1669192988 is about 1186.2298560982.

The spelling of 1669192988 in words is "one billion, six hundred sixty-nine million, one hundred ninety-two thousand, nine hundred eighty-eight".