18279360 has 168 divisors, whose sum is σ = 68708016. Its totient is φ = 4423680.

The previous prime is 18279341. The next prime is 18279361. The reversal of 18279360 is 6397281.

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 (18279361) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31392 + ... + 31968.

Almost surely, 2^18279360 is an apocalyptic number.

18279360 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 18279360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34354008).

18279360 is an abundant number, since it is smaller than the sum of its proper divisors (50428656).

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

18279360 is a wasteful number, since it uses less digits than its factorization.

18279360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611 (or 598 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 18279360 is about 4275.4368197881. The cubic root of 18279360 is about 263.4229821704.

It can be divided in two parts, 18 and 279360, that added together give a triangular number (279378 = T₇₄₇).

The spelling of 18279360 in words is "eighteen million, two hundred seventy-nine thousand, three hundred sixty".