16198138 has 8 divisors (see below), whose sum is σ = 26506080. Its totient is φ = 7362780.

The previous prime is 16198099. The next prime is 16198159. The reversal of 16198138 is 83189161.

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

It is a junction number, because it is equal to n+sod(n) for n = 16198097 and 16198106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 368118 + ... + 368161.

It is an arithmetic number, because the mean of its divisors is an integer number (3313260).

Almost surely, 2^16198138 is an apocalyptic number.

16198138 is a deficient number, since it is larger than the sum of its proper divisors (10307942).

16198138 is a wasteful number, since it uses less digits than its factorization.

16198138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736292.

The product of its digits is 10368, while the sum is 37.

The square root of 16198138 is about 4024.6910440430. The cubic root of 16198138 is about 253.0201049498.

The spelling of 16198138 in words is "sixteen million, one hundred ninety-eight thousand, one hundred thirty-eight".