2028813 has 8 divisors (see below), whose sum is σ = 2712000. Its totient is φ = 1349088.

The previous prime is 2028809. The next prime is 2028841. The reversal of 2028813 is 3188202.

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

It is not a de Polignac number, because 2028813 - 2² = 2028809 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2028863) 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 7 ways as a sum of consecutive naturals, for example, 1233 + ... + 2361.

It is an arithmetic number, because the mean of its divisors is an integer number (339000).

2^2028813 is an apocalyptic number.

It is an amenable number.

2028813 is a deficient number, since it is larger than the sum of its proper divisors (683187).

2028813 is a wasteful number, since it uses less digits than its factorization.

2028813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1731.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 2028813 is about 1424.3640686285. The cubic root of 2028813 is about 126.5942576303.

It can be divided in two parts, 20288 and 13, that added together give a triangular number (20301 = T₂₀₁).

The spelling of 2028813 in words is "two million, twenty-eight thousand, eight hundred thirteen".