2028646 has 8 divisors (see below), whose sum is σ = 3175344. Its totient is φ = 970200.

The previous prime is 2028643. The next prime is 2028647. The reversal of 2028646 is 6468202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2028643) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 22005 + ... + 22096.

It is an arithmetic number, because the mean of its divisors is an integer number (396918).

2^2028646 is an apocalyptic number.

2028646 is a deficient number, since it is larger than the sum of its proper divisors (1146698).

2028646 is a wasteful number, since it uses less digits than its factorization.

2028646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44126.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 2028646 is about 1424.3054447695. The cubic root of 2028646 is about 126.5907840358.

It can be divided in two parts, 20286 and 46, that multiplied together give a square (933156 = 966²).

The spelling of 2028646 in words is "two million, twenty-eight thousand, six hundred forty-six".