720446100 has 216 divisors, whose sum is σ = 2327351040. Its totient is φ = 171916800.

The previous prime is 720446071. The next prime is 720446131. The reversal of 720446100 is 1644027.

It is a congruent number.

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 71 ways as a sum of consecutive naturals, for example, 3230589 + ... + 3230811.

Almost surely, 2^720446100 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 720446100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1163675520).

720446100 is an abundant number, since it is smaller than the sum of its proper divisors (1606904940).

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

720446100 is a wasteful number, since it uses less digits than its factorization.

720446100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351 (or 333 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 720446100 is about 26841.1270255181. The cubic root of 720446100 is about 896.4660180076.

The spelling of 720446100 in words is "seven hundred twenty million, four hundred forty-six thousand, one hundred".