720000039 has 16 divisors (see below), whose sum is σ = 1050698880. Its totient is φ = 434936160.

The previous prime is 719999999. The next prime is 720000049. The reversal of 720000039 is 930000027.

720000039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 720000039 - 2¹² = 719995943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720000049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25404 + ... + 45665.

It is an arithmetic number, because the mean of its divisors is an integer number (65668680).

Almost surely, 2^720000039 is an apocalyptic number.

720000039 is a deficient number, since it is larger than the sum of its proper divisors (330698841).

720000039 is a wasteful number, since it uses less digits than its factorization.

720000039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71390.

The product of its (nonzero) digits is 378, while the sum is 21.

The square root of 720000039 is about 26832.8164567196. The cubic root of 720000039 is about 896.2809654943.

The spelling of 720000039 in words is "seven hundred twenty million, thirty-nine", and thus it is an aban number.