2861016 has 64 divisors (see below), whose sum is σ = 7672320. Its totient is φ = 887040.

The previous prime is 2861009. The next prime is 2861041. The reversal of 2861016 is 6101682.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39156 + ... + 39228.

It is an arithmetic number, because the mean of its divisors is an integer number (119880).

2^2861016 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 2861016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3836160).

2861016 is an abundant number, since it is smaller than the sum of its proper divisors (4811304).

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

2861016 is a wasteful number, since it uses less digits than its factorization.

2861016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176 (or 172 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 2861016 is about 1691.4538125530. The cubic root of 2861016 is about 141.9624313760.

Adding to 2861016 its reverse (6101682), we get a palindrome (8962698).

The spelling of 2861016 in words is "two million, eight hundred sixty-one thousand, sixteen".