654320260 has 48 divisors (see below), whose sum is σ = 1509842880. Its totient is φ = 236211840.

The previous prime is 654320171. The next prime is 654320267. The reversal of 654320260 is 62023456.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (654320267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19882 + ... + 41278.

It is an arithmetic number, because the mean of its divisors is an integer number (31455060).

Almost surely, 2^654320260 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 654320260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (754921440).

654320260 is an abundant number, since it is smaller than the sum of its proper divisors (855522620).

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

654320260 is a wasteful number, since it uses less digits than its factorization.

654320260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21556 (or 21554 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 654320260 is about 25579.6845172101. The cubic root of 654320260 is about 868.1540373061.

The spelling of 654320260 in words is "six hundred fifty-four million, three hundred twenty thousand, two hundred sixty".