16044864 has 112 divisors (see below), whose sum is σ = 47402496. Its totient is φ = 4748800.

The previous prime is 16044851. The next prime is 16044877. The reversal of 16044864 is 46844061.

It is an interprime number because it is at equal distance from previous prime (16044851) and next prime (16044877).

It is a super-3 number, since 3×16044864³ (a number of 23 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149899 + ... + 150005.

Almost surely, 2^16044864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16044864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23701248).

16044864 is an abundant number, since it is smaller than the sum of its proper divisors (31357632).

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

16044864 is a wasteful number, since it uses less digits than its factorization.

16044864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204 (or 194 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 16044864 is about 4005.6040742939. The cubic root of 16044864 is about 252.2195114290.

The spelling of 16044864 in words is "sixteen million, forty-four thousand, eight hundred sixty-four".