2856224 has 48 divisors (see below), whose sum is σ = 6604416. Its totient is φ = 1190400.

The previous prime is 2856197. The next prime is 2856229. The reversal of 2856224 is 4226582.

2856224 is nontrivially palindromic in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2856229) 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, 9029 + ... + 9339.

It is an arithmetic number, because the mean of its divisors is an integer number (137592).

2^2856224 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 2856224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3302208).

2856224 is an abundant number, since it is smaller than the sum of its proper divisors (3748192).

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

2856224 is a wasteful number, since it uses less digits than its factorization.

2856224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369 (or 361 counting only the distinct ones).

The product of its digits is 7680, while the sum is 29.

The square root of 2856224 is about 1690.0366859923. The cubic root of 2856224 is about 141.8831280639.

The spelling of 2856224 in words is "two million, eight hundred fifty-six thousand, two hundred twenty-four".