18071128 has 32 divisors (see below), whose sum is σ = 36270000. Its totient is φ = 8415360.

The previous prime is 18071113. The next prime is 18071143. The reversal of 18071128 is 82117081.

It is an interprime number because it is at equal distance from previous prime (18071113) and next prime (18071143).

It is a junction number, because it is equal to n+sod(n) for n = 18071096 and 18071105.

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, 8298 + ... + 10246.

Almost surely, 2^18071128 is an apocalyptic number.

It is an amenable number.

18071128 is an abundant number, since it is smaller than the sum of its proper divisors (18198872).

18071128 is a wasteful number, since it uses less digits than its factorization.

18071128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2035 (or 2031 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 28.

The square root of 18071128 is about 4251.0149376355. The cubic root of 18071128 is about 262.4188858978.

The spelling of 18071128 in words is "eighteen million, seventy-one thousand, one hundred twenty-eight".