2865828 has 48 divisors (see below), whose sum is σ = 7736960. Its totient is φ = 808704.

The previous prime is 2865817. The next prime is 2865839. The reversal of 2865828 is 8285682.

It is an interprime number because it is at equal distance from previous prime (2865817) and next prime (2865839).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9000 + ... + 9312.

2^2865828 is an apocalyptic number.

2865828 is a gapful number since it is divisible by the number (28) 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 2865828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3868480).

2865828 is an abundant number, since it is smaller than the sum of its proper divisors (4871132).

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

2865828 is a wasteful number, since it uses less digits than its factorization.

2865828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436 (or 434 counting only the distinct ones).

The product of its digits is 61440, while the sum is 39.

The square root of 2865828 is about 1692.8756599349. The cubic root of 2865828 is about 142.0419766134.

It can be divided in two parts, 28 and 65828, that added together give a palindrome (65856).

The spelling of 2865828 in words is "two million, eight hundred sixty-five thousand, eight hundred twenty-eight".