16286144 has 28 divisors (see below), whose sum is σ = 36935664. Its totient is φ = 6979584.

The previous prime is 16286117. The next prime is 16286167. The reversal of 16286144 is 44168261.

It is a tau number, because it is divible by the number of its divisors (28).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 16286144.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17729 + ... + 18624.

Almost surely, 2^16286144 is an apocalyptic number.

16286144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

16286144 is an abundant number, since it is smaller than the sum of its proper divisors (20649520).

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

16286144 is an equidigital number, since it uses as much as digits as its factorization.

16286144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36372 (or 36362 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

The square root of 16286144 is about 4035.6094954790. The cubic root of 16286144 is about 253.4775048865.

The spelling of 16286144 in words is "sixteen million, two hundred eighty-six thousand, one hundred forty-four".