720620544 has 352 divisors, whose sum is σ = 2414739456. Its totient is φ = 186531840.

The previous prime is 720620539. The next prime is 720620561. The reversal of 720620544 is 445026027.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15332329 + ... + 15332375.

Almost surely, 2^720620544 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 720620544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1207369728).

720620544 is an abundant number, since it is smaller than the sum of its proper divisors (1694118912).

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

720620544 is a wasteful number, since it uses less digits than its factorization.

720620544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 720620544 is about 26844.3763943214. The cubic root of 720620544 is about 896.5383669304.

The spelling of 720620544 in words is "seven hundred twenty million, six hundred twenty thousand, five hundred forty-four".