2820028039 has 8 divisors (see below), whose sum is σ = 2848906112. Its totient is φ = 2791179000.

The previous prime is 2820028019. The next prime is 2820028049. The reversal of 2820028039 is 9308200282.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2820028039 - 2⁹ = 2820027527 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2820027995 and 2820028013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2820028009) 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, 225772 + ... + 237934.

It is an arithmetic number, because the mean of its divisors is an integer number (356113264).

Almost surely, 2^2820028039 is an apocalyptic number.

2820028039 is a deficient number, since it is larger than the sum of its proper divisors (28878073).

2820028039 is a wasteful number, since it uses less digits than its factorization.

2820028039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14517.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 2820028039 is about 53103.9361912090. The cubic root of 2820028039 is about 1412.8123268307.

The spelling of 2820028039 in words is "two billion, eight hundred twenty million, twenty-eight thousand, thirty-nine".