18604230 has 64 divisors (see below), whose sum is σ = 47554560. Its totient is φ = 4644864.

The previous prime is 18604213. The next prime is 18604231. The reversal of 18604230 is 3240681.

It is a happy number.

It is a super-2 number, since 2×18604230² = 692234747785800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18604230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18604231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72262 + ... + 72518.

It is an arithmetic number, because the mean of its divisors is an integer number (743040).

Almost surely, 2^18604230 is an apocalyptic number.

18604230 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 18604230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23777280).

18604230 is an abundant number, since it is smaller than the sum of its proper divisors (28950330).

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

18604230 is a wasteful number, since it uses less digits than its factorization.

18604230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 18604230 is about 4313.2621065732. The cubic root of 18604230 is about 264.9743893607.

The spelling of 18604230 in words is "eighteen million, six hundred four thousand, two hundred thirty".