2865104 has 40 divisors (see below), whose sum is σ = 6166272. Its totient is φ = 1278720.

The previous prime is 2865097. The next prime is 2865131. The reversal of 2865104 is 4015682.

It is an Ulam number.

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 7 ways as a sum of consecutive naturals, for example, 12737 + ... + 12959.

2^2865104 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 2865104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3083136).

2865104 is an abundant number, since it is smaller than the sum of its proper divisors (3301168).

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

2865104 is a wasteful number, since it uses less digits than its factorization.

2865104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315 (or 309 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 2865104 is about 1692.6618091042. The cubic root of 2865104 is about 142.0300141541.

The spelling of 2865104 in words is "two million, eight hundred sixty-five thousand, one hundred four".