14128398 has 16 divisors (see below), whose sum is σ = 31396560. Its totient is φ = 4709448.

The previous prime is 14128379. The next prime is 14128409. The reversal of 14128398 is 89382141.

It is a super-2 number, since 2×14128398² = 399223260092808, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

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, 130765 + ... + 130872.

It is an arithmetic number, because the mean of its divisors is an integer number (1962285).

Almost surely, 2^14128398 is an apocalyptic number.

14128398 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

14128398 is an abundant number, since it is smaller than the sum of its proper divisors (17268162).

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

14128398 is a wasteful number, since it uses less digits than its factorization.

14128398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261648 (or 261642 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 14128398 is about 3758.7761306042. The cubic root of 14128398 is about 241.7487887901.

The spelling of 14128398 in words is "fourteen million, one hundred twenty-eight thousand, three hundred ninety-eight".