1992188216 has 16 divisors (see below), whose sum is σ = 3855848640. Its totient is φ = 963961920.

The previous prime is 1992188183. The next prime is 1992188227. The reversal of 1992188216 is 6128812991.

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 3 ways as a sum of consecutive naturals, for example, 4016261 + ... + 4016756.

It is an arithmetic number, because the mean of its divisors is an integer number (240990540).

Almost surely, 2^1992188216 is an apocalyptic number.

It is an amenable number.

1992188216 is a deficient number, since it is larger than the sum of its proper divisors (1863660424).

1992188216 is a wasteful number, since it uses less digits than its factorization.

1992188216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8033054 (or 8033050 counting only the distinct ones).

The product of its digits is 124416, while the sum is 47.

The square root of 1992188216 is about 44633.9356991964. The cubic root of 1992188216 is about 1258.2785376935.

The spelling of 1992188216 in words is "one billion, nine hundred ninety-two million, one hundred eighty-eight thousand, two hundred sixteen".