652290660 has 144 divisors (see below), whose sum is σ = 2268669312. Its totient is φ = 148608000.

The previous prime is 652290659. The next prime is 652290671. The reversal of 652290660 is 66092256.

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

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 47 ways as a sum of consecutive naturals, for example, 504615 + ... + 505905.

It is an arithmetic number, because the mean of its divisors is an integer number (15754648).

Almost surely, 2^652290660 is an apocalyptic number.

652290660 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 652290660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1134334656).

652290660 is an abundant number, since it is smaller than the sum of its proper divisors (1616378652).

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

652290660 is a wasteful number, since it uses less digits than its factorization.

652290660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1714 (or 1709 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 652290660 is about 25539.9815974875. The cubic root of 652290660 is about 867.2554811961.

The spelling of 652290660 in words is "six hundred fifty-two million, two hundred ninety thousand, six hundred sixty".