2859220 has 48 divisors (see below), whose sum is σ = 7394688. Its totient is φ = 904320.

The previous prime is 2859211. The next prime is 2859229. The reversal of 2859220 is 229582.

It is an interprime number because it is at equal distance from previous prime (2859211) and next prime (2859229).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2859229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1035 + ... + 2605.

It is an arithmetic number, because the mean of its divisors is an integer number (154056).

2^2859220 is an apocalyptic number.

2859220 is a gapful number since it is divisible by the number (20) 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 2859220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3697344).

2859220 is an abundant number, since it is smaller than the sum of its proper divisors (4535468).

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

2859220 is a wasteful number, since it uses less digits than its factorization.

2859220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600 (or 1598 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 2859220 is about 1690.9228249687. The cubic root of 2859220 is about 141.9327195654.

The spelling of 2859220 in words is "two million, eight hundred fifty-nine thousand, two hundred twenty".