16421108 has 12 divisors (see below), whose sum is σ = 31349472. Its totient is φ = 7464120.

The previous prime is 16421107. The next prime is 16421113. The reversal of 16421108 is 80112461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16421107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186560 + ... + 186647.

It is an arithmetic number, because the mean of its divisors is an integer number (2612456).

Almost surely, 2^16421108 is an apocalyptic number.

It is an amenable number.

16421108 is a deficient number, since it is larger than the sum of its proper divisors (14928364).

16421108 is a wasteful number, since it uses less digits than its factorization.

16421108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373222 (or 373220 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 16421108 is about 4052.2966327750. The cubic root of 16421108 is about 254.1757726858.

Adding to 16421108 its reverse (80112461), we get a palindrome (96533569).

It can be divided in two parts, 16 and 421108, that added together give a palindrome (421124).

The spelling of 16421108 in words is "sixteen million, four hundred twenty-one thousand, one hundred eight".