2028939 has 8 divisors (see below), whose sum is σ = 2951232. Its totient is φ = 1229640.

The previous prime is 2028931. The next prime is 2028941. The reversal of 2028939 is 9398202.

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

It is not a de Polignac number, because 2028939 - 2³ = 2028931 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 61483 = 2028939 / (2 + 0 + 2 + 8 + 9 + 3 + 9).

It is not an unprimeable number, because it can be changed into a prime (2028931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30709 + ... + 30774.

It is an arithmetic number, because the mean of its divisors is an integer number (368904).

2^2028939 is an apocalyptic number.

2028939 is a deficient number, since it is larger than the sum of its proper divisors (922293).

2028939 is a wasteful number, since it uses less digits than its factorization.

2028939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61497.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 2028939 is about 1424.4082982067. The cubic root of 2028939 is about 126.5968783000.

The spelling of 2028939 in words is "two million, twenty-eight thousand, nine hundred thirty-nine".