16388408 has 16 divisors (see below), whose sum is σ = 32536080. Its totient is φ = 7712128.

The previous prime is 16388381. The next prime is 16388413. The reversal of 16388408 is 80488361.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60116 + ... + 60387.

It is an arithmetic number, because the mean of its divisors is an integer number (2033505).

Almost surely, 2^16388408 is an apocalyptic number.

It is an amenable number.

16388408 is a deficient number, since it is larger than the sum of its proper divisors (16147672).

16388408 is a wasteful number, since it uses less digits than its factorization.

16388408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120526 (or 120522 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 16388408 is about 4048.2598730813. The cubic root of 16388408 is about 254.0069438241.

The spelling of 16388408 in words is "sixteen million, three hundred eighty-eight thousand, four hundred eight".