18346230 has 128 divisors (see below), whose sum is σ = 59304960. Its totient is φ = 3939840.

The previous prime is 18346219. The next prime is 18346243. The reversal of 18346230 is 3264381.

It is a happy number.

18346230 is a `hidden beast` number, since 1 + 8 + 34 + 623 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 18346194 and 18346203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 31845 + ... + 32415.

It is an arithmetic number, because the mean of its divisors is an integer number (463320).

Almost surely, 2^18346230 is an apocalyptic number.

18346230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18346230 is the 2142-nd decagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18346230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29652480).

18346230 is an abundant number, since it is smaller than the sum of its proper divisors (40958730).

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

18346230 is a wasteful number, since it uses less digits than its factorization.

18346230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611 (or 605 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 18346230 is about 4283.2499343372. The cubic root of 18346230 is about 263.7438113894.

The spelling of 18346230 in words is "eighteen million, three hundred forty-six thousand, two hundred thirty".