16199998 has 4 divisors (see below), whose sum is σ = 24300000. Its totient is φ = 8099998.

The previous prime is 16199971. The next prime is 16200013. The reversal of 16199998 is 89999161.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4049998 + ... + 4050001.

It is an arithmetic number, because the mean of its divisors is an integer number (6075000).

Almost surely, 2^16199998 is an apocalyptic number.

16199998 is a deficient number, since it is larger than the sum of its proper divisors (8100002).

16199998 is an equidigital number, since it uses as much as digits as its factorization.

16199998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8100001.

The product of its digits is 314928, while the sum is 52.

The square root of 16199998 is about 4024.9221110476. The cubic root of 16199998 is about 253.0297891778.

The spelling of 16199998 in words is "sixteen million, one hundred ninety-nine thousand, nine hundred ninety-eight".