721482500 has 60 divisors (see below), whose sum is σ = 1590503376. Its totient is φ = 286260000.

The previous prime is 721482493. The next prime is 721482511. The reversal of 721482500 is 5284127.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 326399 + ... + 328601.

Almost surely, 2^721482500 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 721482500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (795251688).

721482500 is an abundant number, since it is smaller than the sum of its proper divisors (869020876).

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

721482500 is a wasteful number, since it uses less digits than its factorization.

721482500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2358 (or 2341 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 721482500 is about 26860.4262810552. The cubic root of 721482500 is about 896.8956833766.

The spelling of 721482500 in words is "seven hundred twenty-one million, four hundred eighty-two thousand, five hundred".