1992084690 has 16 divisors (see below), whose sum is σ = 4781003328. Its totient is φ = 531222576.

The previous prime is 1992084637. The next prime is 1992084691. The reversal of 1992084690 is 964802991.

It is a super-2 number, since 2×1992084690² = 7936802824264792200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1992084691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33201382 + ... + 33201441.

It is an arithmetic number, because the mean of its divisors is an integer number (298812708).

Almost surely, 2^1992084690 is an apocalyptic number.

1992084690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1992084690 is an abundant number, since it is smaller than the sum of its proper divisors (2788918638).

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

1992084690 is a wasteful number, since it uses less digits than its factorization.

1992084690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66402833.

The product of its (nonzero) digits is 279936, while the sum is 48.

The square root of 1992084690 is about 44632.7759611701. The cubic root of 1992084690 is about 1258.2567414263.

The spelling of 1992084690 in words is "one billion, nine hundred ninety-two million, eighty-four thousand, six hundred ninety".