18272148 has 24 divisors (see below), whose sum is σ = 44879520. Its totient is φ = 5770080.

The previous prime is 18272099. The next prime is 18272153. The reversal of 18272148 is 84127281.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 39843 + ... + 40298.

It is an arithmetic number, because the mean of its divisors is an integer number (1869980).

Almost surely, 2^18272148 is an apocalyptic number.

It is an amenable number.

18272148 is an abundant number, since it is smaller than the sum of its proper divisors (26607372).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18272148 is a wasteful number, since it uses less digits than its factorization.

18272148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80167 (or 80165 counting only the distinct ones).

The product of its digits is 7168, while the sum is 33.

The square root of 18272148 is about 4274.5933139891. The cubic root of 18272148 is about 263.3883336843.

The spelling of 18272148 in words is "eighteen million, two hundred seventy-two thousand, one hundred forty-eight".