18449230 has 8 divisors (see below), whose sum is σ = 33208632. Its totient is φ = 7379688.

The previous prime is 18449213. The next prime is 18449237. The reversal of 18449230 is 3294481.

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

It is a junction number, because it is equal to n+sod(n) for n = 18449192 and 18449201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18449237) 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, 922452 + ... + 922471.

It is an arithmetic number, because the mean of its divisors is an integer number (4151079).

Almost surely, 2^18449230 is an apocalyptic number.

18449230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18449230 is a deficient number, since it is larger than the sum of its proper divisors (14759402).

18449230 is a wasteful number, since it uses less digits than its factorization.

18449230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1844930.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 18449230 is about 4295.2566861597. The cubic root of 18449230 is about 264.2364636042.

The spelling of 18449230 in words is "eighteen million, four hundred forty-nine thousand, two hundred thirty".