16391334 has 8 divisors (see below), whose sum is σ = 32782680. Its totient is φ = 5463776.

The previous prime is 16391329. The next prime is 16391339. The reversal of 16391334 is 43319361.

It is an interprime number because it is at equal distance from previous prime (16391329) and next prime (16391339).

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

16391334 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16391339) 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, 1365939 + ... + 1365950.

It is an arithmetic number, because the mean of its divisors is an integer number (4097835).

Almost surely, 2^16391334 is an apocalyptic number.

16391334 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

16391334 is a wasteful number, since it uses less digits than its factorization.

16391334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2731894.

The product of its digits is 5832, while the sum is 30.

The square root of 16391334 is about 4048.6212467950. The cubic root of 16391334 is about 254.0220597949.

The spelling of 16391334 in words is "sixteen million, three hundred ninety-one thousand, three hundred thirty-four".