16464224 has 48 divisors (see below), whose sum is σ = 38255616. Its totient is φ = 6825600.

The previous prime is 16464187. The next prime is 16464229. The reversal of 16464224 is 42246461.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16464229) 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 7 ways as a sum of consecutive naturals, for example, 5759 + ... + 8129.

It is an arithmetic number, because the mean of its divisors is an integer number (796992).

Almost surely, 2^16464224 is an apocalyptic number.

16464224 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16464224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19127808).

16464224 is an abundant number, since it is smaller than the sum of its proper divisors (21791392).

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

16464224 is a wasteful number, since it uses less digits than its factorization.

16464224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2419 (or 2411 counting only the distinct ones).

The product of its digits is 9216, while the sum is 29.

The square root of 16464224 is about 4057.6130914615. The cubic root of 16464224 is about 254.3980367186.

The spelling of 16464224 in words is "sixteen million, four hundred sixty-four thousand, two hundred twenty-four".