16672149 has 40 divisors (see below), whose sum is σ = 27320832. Its totient is φ = 10069920.

The previous prime is 16672147. The next prime is 16672153. The reversal of 16672149 is 94127661.

It is not a de Polignac number, because 16672149 - 2¹ = 16672147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16672147) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 74652 + ... + 74874.

Almost surely, 2^16672149 is an apocalyptic number.

It is an amenable number.

16672149 is a deficient number, since it is larger than the sum of its proper divisors (10648683).

16672149 is a wasteful number, since it uses less digits than its factorization.

16672149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319 (or 310 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 16672149 is about 4083.1542953947. The cubic root of 16672149 is about 255.4644821524.

The spelling of 16672149 in words is "sixteen million, six hundred seventy-two thousand, one hundred forty-nine".