720450039 has 8 divisors (see below), whose sum is σ = 960777712. Its totient is φ = 480211200.

The previous prime is 720450019. The next prime is 720450061. The reversal of 720450039 is 930054027.

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

It is not a de Polignac number, because 720450039 - 2¹¹ = 720447991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 720449988 and 720450015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720450019) 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, 154 + ... + 37959.

It is an arithmetic number, because the mean of its divisors is an integer number (120097214).

Almost surely, 2^720450039 is an apocalyptic number.

720450039 is a deficient number, since it is larger than the sum of its proper divisors (240327673).

720450039 is a wasteful number, since it uses less digits than its factorization.

720450039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44417.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 720450039 is about 26841.2004016214. The cubic root of 720450039 is about 896.4676517977.

The spelling of 720450039 in words is "seven hundred twenty million, four hundred fifty thousand, thirty-nine".