18212048 has 40 divisors (see below), whose sum is σ = 36598848. Its totient is φ = 8773632.

The previous prime is 18212027. The next prime is 18212057. The reversal of 18212048 is 84021281.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 70736 + ... + 70992.

Almost surely, 2^18212048 is an apocalyptic number.

It is an amenable number.

18212048 is an abundant number, since it is smaller than the sum of its proper divisors (18386800).

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

18212048 is a wasteful number, since it uses less digits than its factorization.

18212048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411 (or 405 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 18212048 is about 4267.5576153111. The cubic root of 18212048 is about 263.0992411259.

The spelling of 18212048 in words is "eighteen million, two hundred twelve thousand, forty-eight".