16420168 has 8 divisors (see below), whose sum is σ = 30787830. Its totient is φ = 8210080.

The previous prime is 16420153. The next prime is 16420171. The reversal of 16420168 is 86102461.

16420168 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 15069924 + 1350244 = 3882^2 + 1162^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1026253 + ... + 1026268.

Almost surely, 2^16420168 is an apocalyptic number.

It is an amenable number.

16420168 is a deficient number, since it is larger than the sum of its proper divisors (14367662).

16420168 is a wasteful number, since it uses less digits than its factorization.

16420168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2052527 (or 2052523 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 16420168 is about 4052.1806475033. The cubic root of 16420168 is about 254.1709226317.

The spelling of 16420168 in words is "sixteen million, four hundred twenty thousand, one hundred sixty-eight".