18234330 has 32 divisors (see below), whose sum is σ = 45273600. Its totient is φ = 4694592.

The previous prime is 18234313. The next prime is 18234341. The reversal of 18234330 is 3343281.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18234330.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9610 + ... + 11349.

It is an arithmetic number, because the mean of its divisors is an integer number (1414800).

Almost surely, 2^18234330 is an apocalyptic number.

18234330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18234330 is an abundant number, since it is smaller than the sum of its proper divisors (27039270).

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

18234330 is a wasteful number, since it uses less digits than its factorization.

18234330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20998.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 18234330 is about 4270.1674440237. The cubic root of 18234330 is about 263.2064959148.

The spelling of 18234330 in words is "eighteen million, two hundred thirty-four thousand, three hundred thirty".