652744620 has 144 divisors (see below), whose sum is σ = 2273806080. Its totient is φ = 149904000.

The previous prime is 652744579. The next prime is 652744627. The reversal of 652744620 is 26447256.

652744620 is a `hidden beast` number, since 6 + 5 + 27 + 4 + 4 + 620 = 666.

652744620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (652744627) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28945 + ... + 46295.

It is an arithmetic number, because the mean of its divisors is an integer number (15790320).

Almost surely, 2^652744620 is an apocalyptic number.

652744620 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 652744620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1136903040).

652744620 is an abundant number, since it is smaller than the sum of its proper divisors (1621061460).

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

652744620 is a wasteful number, since it uses less digits than its factorization.

652744620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17396 (or 17391 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The square root of 652744620 is about 25548.8672938743. The cubic root of 652744620 is about 867.4566226127.

The spelling of 652744620 in words is "six hundred fifty-two million, seven hundred forty-four thousand, six hundred twenty".