16138466 has 8 divisors (see below), whose sum is σ = 24233664. Its totient is φ = 8060580.

The previous prime is 16138403. The next prime is 16138477. The reversal of 16138466 is 66483161.

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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1670 + ... + 5921.

It is an arithmetic number, because the mean of its divisors is an integer number (3029208).

Almost surely, 2^16138466 is an apocalyptic number.

16138466 is a deficient number, since it is larger than the sum of its proper divisors (8095198).

16138466 is a wasteful number, since it uses less digits than its factorization.

16138466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8656.

The product of its digits is 20736, while the sum is 35.

The square root of 16138466 is about 4017.2709642243. The cubic root of 16138466 is about 252.7090240559.

The spelling of 16138466 in words is "sixteen million, one hundred thirty-eight thousand, four hundred sixty-six".