16816408 has 24 divisors (see below), whose sum is σ = 36679500. Its totient is φ = 7206864.

The previous prime is 16816403. The next prime is 16816409. The reversal of 16816408 is 80461861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16816403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21058 + ... + 21841.

Almost surely, 2^16816408 is an apocalyptic number.

It is an amenable number.

16816408 is an abundant number, since it is smaller than the sum of its proper divisors (19863092).

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

16816408 is a wasteful number, since it uses less digits than its factorization.

16816408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42919 (or 42908 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 16816408 is about 4100.7813889550. The cubic root of 16816408 is about 256.1991857997.

The spelling of 16816408 in words is "sixteen million, eight hundred sixteen thousand, four hundred eight".