18228960 has 72 divisors (see below), whose sum is σ = 62211240. Its totient is φ = 4860672.

The previous prime is 18228941. The next prime is 18228967. The reversal of 18228960 is 6982281.

It is a tau number, because it is divible by the number of its divisors (72).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18228967) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4890 + ... + 7769.

It is an arithmetic number, because the mean of its divisors is an integer number (864045).

Almost surely, 2^18228960 is an apocalyptic number.

18228960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18228960 is an abundant number, since it is smaller than the sum of its proper divisors (43982280).

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

18228960 is a wasteful number, since it uses less digits than its factorization.

18228960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12680 (or 12669 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 18228960 is about 4269.5386167594. The cubic root of 18228960 is about 263.1806553226.

The spelling of 18228960 in words is "eighteen million, two hundred twenty-eight thousand, nine hundred sixty".