2520039 has 8 divisors (see below), whose sum is σ = 3382912. Its totient is φ = 1668600.

The previous prime is 2520031. The next prime is 2520073. The reversal of 2520039 is 9300252.

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

It is not a de Polignac number, because 2520039 - 2³ = 2520031 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2519997 and 2520024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2520031) 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, 2329 + ... + 3234.

It is an arithmetic number, because the mean of its divisors is an integer number (422864).

2^2520039 is an apocalyptic number.

2520039 is a deficient number, since it is larger than the sum of its proper divisors (862873).

2520039 is a wasteful number, since it uses less digits than its factorization.

2520039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5717.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 2520039 is about 1587.4630704366. The cubic root of 2520039 is about 136.0825443249.

The spelling of 2520039 in words is "two million, five hundred twenty thousand, thirty-nine".