16402198 has 8 divisors (see below), whose sum is σ = 24847200. Its totient is φ = 8119800.

The previous prime is 16402181. The next prime is 16402213. The reversal of 16402198 is 89120461.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 40398 + ... + 40801.

It is an arithmetic number, because the mean of its divisors is an integer number (3105900).

Almost surely, 2^16402198 is an apocalyptic number.

16402198 is a deficient number, since it is larger than the sum of its proper divisors (8445002).

16402198 is a wasteful number, since it uses less digits than its factorization.

16402198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81302.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 16402198 is about 4049.9627158778. The cubic root of 16402198 is about 254.0781684309.

The spelling of 16402198 in words is "sixteen million, four hundred two thousand, one hundred ninety-eight".