652530816 has 320 divisors, whose sum is σ = 2288700480. Its totient is φ = 181398528.

The previous prime is 652530799. The next prime is 652530821. The reversal of 652530816 is 618035256.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 17635950 + ... + 17635986.

It is an arithmetic number, because the mean of its divisors is an integer number (7152189).

Almost surely, 2^652530816 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 652530816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1144350240).

652530816 is an abundant number, since it is smaller than the sum of its proper divisors (1636169664).

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

652530816 is an frugal number, since it uses more digits than its factorization.

652530816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85 (or 49 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 652530816 is about 25544.6827343774. The cubic root of 652530816 is about 867.3619015721.

The spelling of 652530816 in words is "six hundred fifty-two million, five hundred thirty thousand, eight hundred sixteen".