16204138 has 8 divisors (see below), whose sum is σ = 24333120. Its totient is φ = 8093100.

The previous prime is 16204129. The next prime is 16204147. The reversal of 16204138 is 83140261.

It is an interprime number because it is at equal distance from previous prime (16204129) and next prime (16204147).

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

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 3 ways as a sum of consecutive naturals, for example, 1938 + ... + 6013.

It is an arithmetic number, because the mean of its divisors is an integer number (3041640).

Almost surely, 2^16204138 is an apocalyptic number.

16204138 is a deficient number, since it is larger than the sum of its proper divisors (8128982).

16204138 is a wasteful number, since it uses less digits than its factorization.

16204138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8972.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 16204138 is about 4025.4363738606. The cubic root of 16204138 is about 253.0513417340.

Adding to 16204138 its reverse (83140261), we get a palindrome (99344399).

The spelling of 16204138 in words is "sixteen million, two hundred four thousand, one hundred thirty-eight".