16919349 has 8 divisors (see below), whose sum is σ = 22984992. Its totient is φ = 11066640.

The previous prime is 16919327. The next prime is 16919381. The reversal of 16919349 is 94391961.

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

It is not a de Polignac number, because 16919349 - 2⁵ = 16919317 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 16919349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16919449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53047 + ... + 53364.

It is an arithmetic number, because the mean of its divisors is an integer number (2873124).

Almost surely, 2^16919349 is an apocalyptic number.

It is an amenable number.

16919349 is a deficient number, since it is larger than the sum of its proper divisors (6065643).

16919349 is a wasteful number, since it uses less digits than its factorization.

16919349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106467.

The product of its digits is 52488, while the sum is 42.

The square root of 16919349 is about 4113.3136277216. The cubic root of 16919349 is about 256.7208938852.

Subtracting from 16919349 its product of digits (52488), we obtain a palindrome (16866861).

The spelling of 16919349 in words is "sixteen million, nine hundred nineteen thousand, three hundred forty-nine".