720548400 has 720 divisors, whose sum is σ = 3038912640. Its totient is φ = 143769600.

The previous prime is 720548363. The next prime is 720548429. The reversal of 720548400 is 4845027.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 37923591 + ... + 37923609.

It is an arithmetic number, because the mean of its divisors is an integer number (4220712).

Almost surely, 2^720548400 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 720548400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1519456320).

720548400 is an abundant number, since it is smaller than the sum of its proper divisors (2318364240).

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

720548400 is a wasteful number, since it uses less digits than its factorization.

720548400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 720548400 is about 26843.0326155597. The cubic root of 720548400 is about 896.5084473363.

The spelling of 720548400 in words is "seven hundred twenty million, five hundred forty-eight thousand, four hundred".