2006456 has 8 divisors (see below), whose sum is σ = 3762120. Its totient is φ = 1003224.

The previous prime is 2006447. The next prime is 2006461. The reversal of 2006456 is 6546002.

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 125396 + ... + 125411.

It is an arithmetic number, because the mean of its divisors is an integer number (470265).

2^2006456 is an apocalyptic number.

It is an amenable number.

2006456 is a deficient number, since it is larger than the sum of its proper divisors (1755664).

2006456 is a wasteful number, since it uses less digits than its factorization.

2006456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250813 (or 250809 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2006456 is about 1416.4942640194. The cubic root of 2006456 is about 126.1275268849.

The spelling of 2006456 in words is "two million, six thousand, four hundred fifty-six".