16409273 has 8 divisors (see below), whose sum is σ = 17371200. Its totient is φ = 15473808.

The previous prime is 16409249. The next prime is 16409287. The reversal of 16409273 is 37290461.

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

It is not a de Polignac number, because 16409273 - 2¹⁴ = 16392889 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16409213) 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, 5333 + ... + 7826.

It is an arithmetic number, because the mean of its divisors is an integer number (2171400).

Almost surely, 2^16409273 is an apocalyptic number.

It is an amenable number.

16409273 is a deficient number, since it is larger than the sum of its proper divisors (961927).

16409273 is a wasteful number, since it uses less digits than its factorization.

16409273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13231.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 16409273 is about 4050.8360865382. The cubic root of 16409273 is about 254.1146949306.

The spelling of 16409273 in words is "sixteen million, four hundred nine thousand, two hundred seventy-three".