16644496 has 40 divisors (see below), whose sum is σ = 37256544. Its totient is φ = 7119360.

The previous prime is 16644469. The next prime is 16644527. The reversal of 16644496 is 69444661.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211 + ... + 5773.

Almost surely, 2^16644496 is an apocalyptic number.

16644496 is a gapful number since it is divisible by the number (16) 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 16644496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18628272).

16644496 is an abundant number, since it is smaller than the sum of its proper divisors (20612048).

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

16644496 is a wasteful number, since it uses less digits than its factorization.

16644496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5599 (or 5593 counting only the distinct ones).

The product of its digits is 124416, while the sum is 40.

The square root of 16644496 is about 4079.7666599942. The cubic root of 16644496 is about 255.3231632647.

The spelling of 16644496 in words is "sixteen million, six hundred forty-four thousand, four hundred ninety-six".