18339130 has 16 divisors (see below), whose sum is σ = 33215904. Its totient is φ = 7290000.

The previous prime is 18339127. The next prime is 18339157. The reversal of 18339130 is 3193381.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3996 + ... + 7255.

It is an arithmetic number, because the mean of its divisors is an integer number (2075994).

Almost surely, 2^18339130 is an apocalyptic number.

18339130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18339130 is a deficient number, since it is larger than the sum of its proper divisors (14876774).

18339130 is a wasteful number, since it uses less digits than its factorization.

18339130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11421.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 18339130 is about 4282.4210442225. The cubic root of 18339130 is about 263.7097840048.

The spelling of 18339130 in words is "eighteen million, three hundred thirty-nine thousand, one hundred thirty".