13998128 has 20 divisors (see below), whose sum is σ = 27208080. Its totient is φ = 6976704.

The previous prime is 13998121. The next prime is 13998133. The reversal of 13998128 is 82189931.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (13998121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4526 + ... + 6962.

It is an arithmetic number, because the mean of its divisors is an integer number (1360404).

Almost surely, 2^13998128 is an apocalyptic number.

It is an amenable number.

13998128 is a deficient number, since it is larger than the sum of its proper divisors (13209952).

13998128 is a wasteful number, since it uses less digits than its factorization.

13998128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2804 (or 2798 counting only the distinct ones).

The product of its digits is 31104, while the sum is 41.

The square root of 13998128 is about 3741.4072218886. The cubic root of 13998128 is about 241.0034835903.

The spelling of 13998128 in words is "thirteen million, nine hundred ninety-eight thousand, one hundred twenty-eight".