16389808 has 20 divisors (see below), whose sum is σ = 32231320. Its totient is φ = 8072064.

The previous prime is 16389797. The next prime is 16389811. The reversal of 16389808 is 80898361.

It is a happy number.

16389808 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 6573 + ... + 8716.

It is an arithmetic number, because the mean of its divisors is an integer number (1611566).

Almost surely, 2^16389808 is an apocalyptic number.

It is an amenable number.

16389808 is a deficient number, since it is larger than the sum of its proper divisors (15841512).

16389808 is a wasteful number, since it uses less digits than its factorization.

16389808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15364 (or 15358 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 16389808 is about 4048.4327831891. The cubic root of 16389808 is about 254.0141765704.

The spelling of 16389808 in words is "sixteen million, three hundred eighty-nine thousand, eight hundred eight".