18297000 has 192 divisors, whose sum is σ = 65707200. Its totient is φ = 4579200.

The previous prime is 18296977. The next prime is 18297001. The reversal of 18297000 is 79281.

It is not an unprimeable number, because it can be changed into a prime (18297001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 170947 + ... + 171053.

It is an arithmetic number, because the mean of its divisors is an integer number (342225).

Almost surely, 2^18297000 is an apocalyptic number.

18297000 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 18297000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32853600).

18297000 is an abundant number, since it is smaller than the sum of its proper divisors (47410200).

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

18297000 is a wasteful number, since it uses less digits than its factorization.

18297000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 18297000 is about 4277.4992694330. The cubic root of 18297000 is about 263.5076913261.

The spelling of 18297000 in words is "eighteen million, two hundred ninety-seven thousand".