3216144 has 20 divisors (see below), whose sum is σ = 8308496. Its totient is φ = 1072032.

The previous prime is 3216139. The next prime is 3216197. The reversal of 3216144 is 4416123.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 3216144.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33454 + ... + 33549.

Almost surely, 2^3216144 is an apocalyptic number.

It is an amenable number.

3216144 is an abundant number, since it is smaller than the sum of its proper divisors (5092352).

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

3216144 is a wasteful number, since it uses less digits than its factorization.

3216144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67014 (or 67008 counting only the distinct ones).

The product of its digits is 576, while the sum is 21.

The square root of 3216144 is about 1793.3610902437. The cubic root of 3216144 is about 147.6086568905.

Subtracting from 3216144 its sum of digits (21), we obtain a palindrome (3216123).

The spelling of 3216144 in words is "three million, two hundred sixteen thousand, one hundred forty-four".