18968560 has 120 divisors (see below), whose sum is σ = 50648544. Its totient is φ = 6589440.

The previous prime is 18968513. The next prime is 18968561. The reversal of 18968560 is 6586981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18968561) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 310930 + ... + 310990.

Almost surely, 2^18968560 is an apocalyptic number.

18968560 is a gapful number since it is divisible by the number (10) 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 18968560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25324272).

18968560 is an abundant number, since it is smaller than the sum of its proper divisors (31679984).

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

18968560 is a wasteful number, since it uses less digits than its factorization.

18968560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123 (or 104 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 18968560 is about 4355.2910350515. The cubic root of 18968560 is about 266.6929001970.

The spelling of 18968560 in words is "eighteen million, nine hundred sixty-eight thousand, five hundred sixty".