16104403 has 8 divisors (see below), whose sum is σ = 18833408. Its totient is φ = 13482504.

The previous prime is 16104377. The next prime is 16104437. The reversal of 16104403 is 30440161.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16104403 - 2⁵ = 16104371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16108403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26451 + ... + 27052.

It is an arithmetic number, because the mean of its divisors is an integer number (2354176).

Almost surely, 2^16104403 is an apocalyptic number.

16104403 is a deficient number, since it is larger than the sum of its proper divisors (2729005).

16104403 is an equidigital number, since it uses as much as digits as its factorization.

16104403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53553.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 16104403 is about 4013.0291551395. The cubic root of 16104403 is about 252.5311035762.

Adding to 16104403 its reverse (30440161), we get a palindrome (46544564).

The spelling of 16104403 in words is "sixteen million, one hundred four thousand, four hundred three".