720272080 has 80 divisors (see below), whose sum is σ = 1831543488. Its totient is φ = 261248000.

The previous prime is 720272017. The next prime is 720272087. The reversal of 720272080 is 80272027.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720272087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 457695 + ... + 459265.

Almost surely, 2^720272080 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 720272080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (915771744).

720272080 is an abundant number, since it is smaller than the sum of its proper divisors (1111271408).

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

720272080 is a wasteful number, since it uses less digits than its factorization.

720272080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2116 (or 2110 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 720272080 is about 26837.8851625831. The cubic root of 720272080 is about 896.3938332974.

The spelling of 720272080 in words is "seven hundred twenty million, two hundred seventy-two thousand, eighty".