17968530 has 48 divisors (see below), whose sum is σ = 44838144. Its totient is φ = 4603680.

The previous prime is 17968501. The next prime is 17968553. The reversal of 17968530 is 3586971.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129201 + ... + 129339.

It is an arithmetic number, because the mean of its divisors is an integer number (934128).

Almost surely, 2^17968530 is an apocalyptic number.

17968530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 17968530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22419072).

17968530 is an abundant number, since it is smaller than the sum of its proper divisors (26869614).

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

17968530 is a wasteful number, since it uses less digits than its factorization.

17968530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 17968530 is about 4238.9302895896. The cubic root of 17968530 is about 261.9213193415.

The spelling of 17968530 in words is "seventeen million, nine hundred sixty-eight thousand, five hundred thirty".