16409413 has 4 divisors (see below), whose sum is σ = 16562880. Its totient is φ = 16255948.

The previous prime is 16409411. The next prime is 16409417. The reversal of 16409413 is 31490461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16409413 - 2¹ = 16409411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16409411) 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 3 ways as a sum of consecutive naturals, for example, 76573 + ... + 76786.

It is an arithmetic number, because the mean of its divisors is an integer number (4140720).

Almost surely, 2^16409413 is an apocalyptic number.

It is an amenable number.

16409413 is a deficient number, since it is larger than the sum of its proper divisors (153467).

16409413 is a wasteful number, since it uses less digits than its factorization.

16409413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153466.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 16409413 is about 4050.8533668846. The cubic root of 16409413 is about 254.1154176106.

Adding to 16409413 its reverse (31490461), we get a palindrome (47899874).

The spelling of 16409413 in words is "sixteen million, four hundred nine thousand, four hundred thirteen".