16402104 has 48 divisors (see below), whose sum is σ = 44736120. Its totient is φ = 5428800.

The previous prime is 16402079. The next prime is 16402121. The reversal of 16402104 is 40120461.

16402104 is a `hidden beast` number, since 1 + 640 + 21 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 10579 + ... + 12029.

Almost surely, 2^16402104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16402104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22368060).

16402104 is an abundant number, since it is smaller than the sum of its proper divisors (28334016).

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

16402104 is a wasteful number, since it uses less digits than its factorization.

16402104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620 (or 1613 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 16402104 is about 4049.9511108160. The cubic root of 16402104 is about 254.0776830612.

Adding to 16402104 its reverse (40120461), we get a palindrome (56522565).

The spelling of 16402104 in words is "sixteen million, four hundred two thousand, one hundred four".