16388801 has 16 divisors (see below), whose sum is σ = 19880448. Its totient is φ = 13305600.

The previous prime is 16388791. The next prime is 16388831. The reversal of 16388801 is 10888361.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-16388801 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16388831) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2585 + ... + 6281.

It is an arithmetic number, because the mean of its divisors is an integer number (1242528).

Almost surely, 2^16388801 is an apocalyptic number.

16388801 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16388801 is a deficient number, since it is larger than the sum of its proper divisors (3491647).

16388801 is a wasteful number, since it uses less digits than its factorization.

16388801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3752.

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 16388801 is about 4048.3084121643. The cubic root of 16388801 is about 254.0089742009.

The spelling of 16388801 in words is "sixteen million, three hundred eighty-eight thousand, eight hundred one".