16044645 has 24 divisors (see below), whose sum is σ = 27102816. Its totient is φ = 8104032.

The previous prime is 16044629. The next prime is 16044649. The reversal of 16044645 is 54644061.

It is not a de Polignac number, because 16044645 - 2⁴ = 16044629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16044649) 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 23 ways as a sum of consecutive naturals, for example, 3934 + ... + 6896.

It is an arithmetic number, because the mean of its divisors is an integer number (1129284).

Almost surely, 2^16044645 is an apocalyptic number.

16044645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16044645 is a deficient number, since it is larger than the sum of its proper divisors (11058171).

16044645 is a wasteful number, since it uses less digits than its factorization.

16044645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3009 (or 2990 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 16044645 is about 4005.5767374999. The cubic root of 16044645 is about 252.2183638899.

The spelling of 16044645 in words is "sixteen million, forty-four thousand, six hundred forty-five".