16474449 has 4 divisors (see below), whose sum is σ = 21965936. Its totient is φ = 10982964.

The previous prime is 16474441. The next prime is 16474477. The reversal of 16474449 is 94447461.

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 not a de Polignac number, because 16474449 - 2³ = 16474441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16474441) 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, 2745739 + ... + 2745744.

It is an arithmetic number, because the mean of its divisors is an integer number (5491484).

Almost surely, 2^16474449 is an apocalyptic number.

It is an amenable number.

16474449 is a deficient number, since it is larger than the sum of its proper divisors (5491487).

16474449 is an equidigital number, since it uses as much as digits as its factorization.

16474449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5491486.

The product of its digits is 96768, while the sum is 39.

The square root of 16474449 is about 4058.8728731016. The cubic root of 16474449 is about 254.4506899061.

The spelling of 16474449 in words is "sixteen million, four hundred seventy-four thousand, four hundred forty-nine".