16404448 has 24 divisors (see below), whose sum is σ = 33997320. Its totient is φ = 7770240.

The previous prime is 16404413. The next prime is 16404449. The reversal of 16404448 is 84440461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16404449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12883 + ... + 14098.

It is an arithmetic number, because the mean of its divisors is an integer number (1416555).

Almost surely, 2^16404448 is an apocalyptic number.

It is an amenable number.

16404448 is an abundant number, since it is smaller than the sum of its proper divisors (17592872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16404448 is a wasteful number, since it uses less digits than its factorization.

16404448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27010 (or 27002 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 16404448 is about 4050.2404866872. The cubic root of 16404448 is about 254.0897857711.

The spelling of 16404448 in words is "sixteen million, four hundred four thousand, four hundred forty-eight".