16949249 has 8 divisors (see below), whose sum is σ = 17263080. Its totient is φ = 16638336.

The previous prime is 16949239. The next prime is 16949269. The reversal of 16949249 is 94294961.

It can be written as a sum of positive squares in 4 ways, for example, as 490000 + 16459249 = 700^2 + 4057^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 16949249 - 2²⁰ = 15900673 is a prime.

It is a super-3 number, since 3×16949249³ (a number of 23 digits) contains 333 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 (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13367 + ... + 14579.

It is an arithmetic number, because the mean of its divisors is an integer number (2157885).

It is a Proth number, since it is equal to 2069 ⋅ 2¹³ + 1 and 2069 < 2¹³.

Almost surely, 2^16949249 is an apocalyptic number.

It is an amenable number.

16949249 is a deficient number, since it is larger than the sum of its proper divisors (313831).

16949249 is a wasteful number, since it uses less digits than its factorization.

16949249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459.

The product of its digits is 139968, while the sum is 44.

The square root of 16949249 is about 4116.9465626845. The cubic root of 16949249 is about 256.8720312505.

The spelling of 16949249 in words is "sixteen million, nine hundred forty-nine thousand, two hundred forty-nine".