720725382 has 48 divisors (see below), whose sum is σ = 1700637120. Its totient is φ = 219263616.

The previous prime is 720725377. The next prime is 720725393. The reversal of 720725382 is 283527027.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3523 + ... + 38129.

It is an arithmetic number, because the mean of its divisors is an integer number (35429940).

Almost surely, 2^720725382 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 720725382, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (850318560).

720725382 is an abundant number, since it is smaller than the sum of its proper divisors (979911738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

720725382 is a wasteful number, since it uses less digits than its factorization.

720725382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34717 (or 34714 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 720725382 is about 26846.3290227919. The cubic root of 720725382 is about 896.5818418366.

It can be divided in two parts, 720 and 725382, that multiplied together give a triangular number (522275040 = T₃₂₃₁₉).

The spelling of 720725382 in words is "seven hundred twenty million, seven hundred twenty-five thousand, three hundred eighty-two".