1992165810 has 32 divisors (see below), whose sum is σ = 4897815552. Its totient is φ = 518286720.

The previous prime is 1992165809. The next prime is 1992165841. The reversal of 1992165810 is 185612991.

It is a super-2 number, since 2×1992165810² = 7937449229065912200, which contains 22 as substring.

It is a Curzon 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, 808594 + ... + 811053.

It is an arithmetic number, because the mean of its divisors is an integer number (153056736).

Almost surely, 2^1992165810 is an apocalyptic number.

1992165810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1992165810 is an abundant number, since it is smaller than the sum of its proper divisors (2905649742).

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

1992165810 is a wasteful number, since it uses less digits than its factorization.

1992165810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619698.

The product of its (nonzero) digits is 38880, while the sum is 42.

The square root of 1992165810 is about 44633.6847011313. The cubic root of 1992165810 is about 1258.2738204193.

The spelling of 1992165810 in words is "one billion, nine hundred ninety-two million, one hundred sixty-five thousand, eight hundred ten".