2857230 has 48 divisors (see below), whose sum is σ = 7581600. Its totient is φ = 746304.

The previous prime is 2857223. The next prime is 2857237. The reversal of 2857230 is 327582.

2857230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2857223) and next prime (2857237).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2857194 and 2857203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2857237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4471 + ... + 5069.

It is an arithmetic number, because the mean of its divisors is an integer number (157950).

2^2857230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2857230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3790800).

2857230 is an abundant number, since it is smaller than the sum of its proper divisors (4724370).

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

2857230 is a wasteful number, since it uses less digits than its factorization.

2857230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665 (or 662 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 2857230 is about 1690.3342864653. The cubic root of 2857230 is about 141.8997838155.

The spelling of 2857230 in words is "two million, eight hundred fifty-seven thousand, two hundred thirty".