2806444 has 6 divisors (see below), whose sum is σ = 4911284. Its totient is φ = 1403220.

The previous prime is 2806439. The next prime is 2806457. The reversal of 2806444 is 4446082.

2806444 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2806444² = 15752255850272, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 350802 + ... + 350809.

2^2806444 is an apocalyptic number.

It is an amenable number.

2806444 is a deficient number, since it is larger than the sum of its proper divisors (2104840).

2806444 is a wasteful number, since it uses less digits than its factorization.

2806444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701615 (or 701613 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 2806444 is about 1675.2444597730. The cubic root of 2806444 is about 141.0540174970.

It can be divided in two parts, 280 and 6444, that added together give a square (6724 = 82²).

The spelling of 2806444 in words is "two million, eight hundred six thousand, four hundred forty-four".