720528441 has 8 divisors (see below), whose sum is σ = 960842880. Its totient is φ = 480283152.

The previous prime is 720528433. The next prime is 720528451. The reversal of 720528441 is 144825027.

720528441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 720528441 - 2³ = 720528433 is a prime.

It is a super-2 number, since 2×720528441² = 1038322468579780962, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (720528451) 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, 16416 + ... + 41358.

It is an arithmetic number, because the mean of its divisors is an integer number (120105360).

Almost surely, 2^720528441 is an apocalyptic number.

It is an amenable number.

720528441 is a deficient number, since it is larger than the sum of its proper divisors (240314439).

720528441 is a wasteful number, since it uses less digits than its factorization.

720528441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34575.

The product of its (nonzero) digits is 17920, while the sum is 33.

The square root of 720528441 is about 26842.6608405352. The cubic root of 720528441 is about 896.5001695777.

The spelling of 720528441 in words is "seven hundred twenty million, five hundred twenty-eight thousand, four hundred forty-one".