4520039 has 4 divisors (see below), whose sum is σ = 4594200. Its totient is φ = 4445880.

The previous prime is 4520023. The next prime is 4520051. The reversal of 4520039 is 9300254.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4520039 - 2⁴ = 4520023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4519996 and 4520023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4520059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36989 + ... + 37110.

It is an arithmetic number, because the mean of its divisors is an integer number (1148550).

Almost surely, 2^4520039 is an apocalyptic number.

4520039 is a deficient number, since it is larger than the sum of its proper divisors (74161).

4520039 is an equidigital number, since it uses as much as digits as its factorization.

4520039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74160.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 4520039 is about 2126.0383345556. The cubic root of 4520039 is about 165.3410637247.

The spelling of 4520039 in words is "four million, five hundred twenty thousand, thirty-nine".