16949219 has 16 divisors (see below), whose sum is σ = 20545536. Its totient is φ = 13672800.

The previous prime is 16949201. The next prime is 16949227. The reversal of 16949219 is 91294961.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 16949219 - 2¹⁶ = 16883683 is a prime.

It is a super-2 number, since 2×16949219² = 574552049419922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16949239) 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 15 ways as a sum of consecutive naturals, for example, 6974 + ... + 9084.

It is an arithmetic number, because the mean of its divisors is an integer number (1284096).

Almost surely, 2^16949219 is an apocalyptic number.

16949219 is a deficient number, since it is larger than the sum of its proper divisors (3596317).

16949219 is a wasteful number, since it uses less digits than its factorization.

16949219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2186.

The product of its digits is 34992, while the sum is 41.

The square root of 16949219 is about 4116.9429192059. The cubic root of 16949219 is about 256.8718796968.

The spelling of 16949219 in words is "sixteen million, nine hundred forty-nine thousand, two hundred nineteen".