654238860 has 96 divisors (see below), whose sum is σ = 2005420032. Its totient is φ = 158046720.

The previous prime is 654238859. The next prime is 654238861. The reversal of 654238860 is 68832456.

It is an interprime number because it is at equal distance from previous prime (654238859) and next prime (654238861).

It is not an unprimeable number, because it can be changed into a prime (654238861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 204997 + ... + 208163.

It is an arithmetic number, because the mean of its divisors is an integer number (20889792).

Almost surely, 2^654238860 is an apocalyptic number.

654238860 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 654238860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1002710016).

654238860 is an abundant number, since it is smaller than the sum of its proper divisors (1351181172).

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

654238860 is a wasteful number, since it uses less digits than its factorization.

654238860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3503 (or 3501 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

The square root of 654238860 is about 25578.0933613121. The cubic root of 654238860 is about 868.1180352270.

The spelling of 654238860 in words is "six hundred fifty-four million, two hundred thirty-eight thousand, eight hundred sixty".