2856992 has 48 divisors (see below), whose sum is σ = 6128640. Its totient is φ = 1306368.

The previous prime is 2856977. The next prime is 2857009. The reversal of 2856992 is 2996582.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22433 + ... + 22559.

It is an arithmetic number, because the mean of its divisors is an integer number (127680).

2^2856992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2856992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3064320).

2856992 is an abundant number, since it is smaller than the sum of its proper divisors (3271648).

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

2856992 is a wasteful number, since it uses less digits than its factorization.

2856992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 185 counting only the distinct ones).

The product of its digits is 77760, while the sum is 41.

The square root of 2856992 is about 1690.2638847233. The cubic root of 2856992 is about 141.8958437423.

The spelling of 2856992 in words is "two million, eight hundred fifty-six thousand, nine hundred ninety-two".