652721120 has 96 divisors (see below), whose sum is σ = 1685650176. Its totient is φ = 237772800.

The previous prime is 652721099. The next prime is 652721143. The reversal of 652721120 is 21127256.

It is a self number, because there is not a number n which added to its sum of digits gives 652721120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80450 + ... + 88190.

It is an arithmetic number, because the mean of its divisors is an integer number (17558856).

Almost surely, 2^652721120 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 652721120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (842825088).

652721120 is an abundant number, since it is smaller than the sum of its proper divisors (1032929056).

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

652721120 is a wasteful number, since it uses less digits than its factorization.

652721120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7804 (or 7796 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 652721120 is about 25548.4073867629. The cubic root of 652721120 is about 867.4462124795.

Adding to 652721120 its reverse (21127256), we get a palindrome (673848376).

The spelling of 652721120 in words is "six hundred fifty-two million, seven hundred twenty-one thousand, one hundred twenty".