16549039 has 8 divisors (see below), whose sum is σ = 17914400. Its totient is φ = 15196896.

The previous prime is 16549037. The next prime is 16549051. The reversal of 16549039 is 93094561.

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

It is not a de Polignac number, because 16549039 - 2¹ = 16549037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16548989 and 16549007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16549031) 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, 612 + ... + 5785.

It is an arithmetic number, because the mean of its divisors is an integer number (2239300).

Almost surely, 2^16549039 is an apocalyptic number.

16549039 is a deficient number, since it is larger than the sum of its proper divisors (1365361).

16549039 is a wasteful number, since it uses less digits than its factorization.

16549039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6609.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 16549039 is about 4068.0510075465. The cubic root of 16549039 is about 254.8341302437.

The spelling of 16549039 in words is "sixteen million, five hundred forty-nine thousand, thirty-nine".