18184030 has 32 divisors (see below), whose sum is σ = 34426944. Its totient is φ = 6902016.

The previous prime is 18184027. The next prime is 18184037. The reversal of 18184030 is 3048181.

It is a junction number, because it is equal to n+sod(n) for n = 18183986 and 18184004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18184037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39562 + ... + 40018.

It is an arithmetic number, because the mean of its divisors is an integer number (1075842).

Almost surely, 2^18184030 is an apocalyptic number.

18184030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18184030 is a deficient number, since it is larger than the sum of its proper divisors (16242914).

18184030 is a wasteful number, since it uses less digits than its factorization.

18184030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 18184030 is about 4264.2736778964. The cubic root of 18184030 is about 262.9642517686.

The spelling of 18184030 in words is "eighteen million, one hundred eighty-four thousand, thirty".