16390908 has 36 divisors (see below), whose sum is σ = 42140280. Its totient is φ = 5370336.

The previous prime is 16390903. The next prime is 16390919. The reversal of 16390908 is 80909361.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16390903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1735 + ... + 5982.

Almost surely, 2^16390908 is an apocalyptic number.

16390908 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16390908 is an abundant number, since it is smaller than the sum of its proper divisors (25749372).

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

16390908 is a wasteful number, since it uses less digits than its factorization.

16390908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7786 (or 7781 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 16390908 is about 4048.5686359502. The cubic root of 16390908 is about 254.0198591536.

The spelling of 16390908 in words is "sixteen million, three hundred ninety thousand, nine hundred eight".