16199808 has 32 divisors (see below), whose sum is σ = 43031760. Its totient is φ = 5399808.

The previous prime is 16199803. The next prime is 16199867. The reversal of 16199808 is 80899161.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 16199808.

It is not an unprimeable number, because it can be changed into a prime (16199801) 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, 20710 + ... + 21477.

Almost surely, 2^16199808 is an apocalyptic number.

It is an amenable number.

16199808 is an abundant number, since it is smaller than the sum of its proper divisors (26831952).

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

16199808 is an equidigital number, since it uses as much as digits as its factorization.

16199808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42204 (or 42192 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 42.

The square root of 16199808 is about 4024.8985080372. The cubic root of 16199808 is about 253.0287999627.

The spelling of 16199808 in words is "sixteen million, one hundred ninety-nine thousand, eight hundred eight".