2806236 has 18 divisors (see below), whose sum is σ = 7093632. Its totient is φ = 935400.

The previous prime is 2806231. The next prime is 2806247. The reversal of 2806236 is 6326082.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2806231) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38940 + ... + 39011.

2^2806236 is an apocalyptic number.

It is an amenable number.

2806236 is an abundant number, since it is smaller than the sum of its proper divisors (4287396).

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

2806236 is a wasteful number, since it uses less digits than its factorization.

2806236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77961 (or 77956 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 2806236 is about 1675.1823781308. The cubic root of 2806236 is about 141.0505326647.

The spelling of 2806236 in words is "two million, eight hundred six thousand, two hundred thirty-six".