18472214 has 8 divisors (see below), whose sum is σ = 27772200. Its totient is φ = 9214816.

The previous prime is 18472189. The next prime is 18472247. The reversal of 18472214 is 41227481.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9539 + ... + 11310.

It is an arithmetic number, because the mean of its divisors is an integer number (3471525).

Almost surely, 2^18472214 is an apocalyptic number.

18472214 is a deficient number, since it is larger than the sum of its proper divisors (9299986).

18472214 is a wasteful number, since it uses less digits than its factorization.

18472214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21294.

The product of its digits is 3584, while the sum is 29.

The square root of 18472214 is about 4297.9313628768. The cubic root of 18472214 is about 264.3461464225.

Adding to 18472214 its reverse (41227481), we get a palindrome (59699695).

The spelling of 18472214 in words is "eighteen million, four hundred seventy-two thousand, two hundred fourteen".