16448436 has 18 divisors (see below), whose sum is σ = 41578082. Its totient is φ = 5482800.

The previous prime is 16448431. The next prime is 16448437. The reversal of 16448436 is 63484461.

16448436 is a `hidden beast` number, since 1 + 644 + 8 + 4 + 3 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 14107536 + 2340900 = 3756^2 + 1530^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 456901 = 16448436 / (1 + 6 + 4 + 4 + 8 + 4 + 3 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 16448436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16448431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 228415 + ... + 228486.

Almost surely, 2^16448436 is an apocalyptic number.

It is an amenable number.

16448436 is an abundant number, since it is smaller than the sum of its proper divisors (25129646).

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

16448436 is a wasteful number, since it uses less digits than its factorization.

16448436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456911 (or 456906 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 16448436 is about 4055.6671461056. The cubic root of 16448436 is about 254.3166942735.

The spelling of 16448436 in words is "sixteen million, four hundred forty-eight thousand, four hundred thirty-six".