18119928 has 32 divisors (see below), whose sum is σ = 46046160. Its totient is φ = 5940480.

The previous prime is 18119921. The next prime is 18119963. The reversal of 18119928 is 82991181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18119921) by changing a digit.

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, 4725 + ... + 7652.

Almost surely, 2^18119928 is an apocalyptic number.

It is an amenable number.

18119928 is an abundant number, since it is smaller than the sum of its proper divisors (27926232).

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

18119928 is a wasteful number, since it uses less digits than its factorization.

18119928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12447 (or 12443 counting only the distinct ones).

The product of its digits is 10368, while the sum is 39.

The square root of 18119928 is about 4256.7508736124. The cubic root of 18119928 is about 262.6548890880.

The spelling of 18119928 in words is "eighteen million, one hundred nineteen thousand, nine hundred twenty-eight".