18982128 has 40 divisors (see below), whose sum is σ = 53496576. Its totient is φ = 5752000.

The previous prime is 18982127. The next prime is 18982141. The reversal of 18982128 is 82128981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18982127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17448 + ... + 18503.

Almost surely, 2^18982128 is an apocalyptic number.

It is an amenable number.

18982128 is an abundant number, since it is smaller than the sum of its proper divisors (34514448).

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

18982128 is a wasteful number, since it uses less digits than its factorization.

18982128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35973 (or 35967 counting only the distinct ones).

The product of its digits is 18432, while the sum is 39.

The square root of 18982128 is about 4356.8484022284. The cubic root of 18982128 is about 266.7564725303.

It can be divided in two parts, 18982 and 128, that added together give a triangular number (19110 = T₁₉₅).

The spelling of 18982128 in words is "eighteen million, nine hundred eighty-two thousand, one hundred twenty-eight".