16012644 has 24 divisors (see below), whose sum is σ = 37614528. Its totient is φ = 5301600.

The previous prime is 16012643. The next prime is 16012651. The reversal of 16012644 is 44621061.

16012644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (16012643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2607 + ... + 6230.

It is an arithmetic number, because the mean of its divisors is an integer number (1567272).

Almost surely, 2^16012644 is an apocalyptic number.

It is an amenable number.

16012644 is an abundant number, since it is smaller than the sum of its proper divisors (21601884).

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

16012644 is a wasteful number, since it uses less digits than its factorization.

16012644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8995 (or 8993 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 16012644 is about 4001.5801878758. The cubic root of 16012644 is about 252.0505693425.

The spelling of 16012644 in words is "sixteen million, twelve thousand, six hundred forty-four".