2851992 has 96 divisors (see below), whose sum is σ = 9107280. Its totient is φ = 794880.

The previous prime is 2851991. The next prime is 2852027. The reversal of 2851992 is 2991582.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2851991) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10158 + ... + 10434.

2^2851992 is an apocalyptic number.

2851992 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2851992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4553640).

2851992 is an abundant number, since it is smaller than the sum of its proper divisors (6255288).

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

2851992 is a wasteful number, since it uses less digits than its factorization.

2851992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313 (or 306 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The square root of 2851992 is about 1688.7841780405. The cubic root of 2851992 is about 141.8130184600.

The spelling of 2851992 in words is "two million, eight hundred fifty-one thousand, nine hundred ninety-two".