18234130 has 8 divisors (see below), whose sum is σ = 32821452. Its totient is φ = 7293648.

The previous prime is 18234113. The next prime is 18234131. The reversal of 18234130 is 3143281.

It can be written as a sum of positive squares in 2 ways, for example, as 17952169 + 281961 = 4237^2 + 531^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (18234131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 911697 + ... + 911716.

Almost surely, 2^18234130 is an apocalyptic number.

18234130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18234130 is a deficient number, since it is larger than the sum of its proper divisors (14587322).

18234130 is a wasteful number, since it uses less digits than its factorization.

18234130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1823420.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 18234130 is about 4270.1440256741. The cubic root of 18234130 is about 263.2055336001.

The spelling of 18234130 in words is "eighteen million, two hundred thirty-four thousand, one hundred thirty".