1944216 has 32 divisors (see below), whose sum is σ = 5401200. Its totient is φ = 648000.

The previous prime is 1944211. The next prime is 1944223. The reversal of 1944216 is 6124491.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 1944216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1944211) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4285 + ... + 4716.

2^1944216 is an apocalyptic number.

It is an amenable number.

1944216 is an abundant number, since it is smaller than the sum of its proper divisors (3456984).

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

1944216 is a wasteful number, since it uses less digits than its factorization.

1944216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9016 (or 9006 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 1944216 is about 1394.3514621501. The cubic root of 1944216 is about 124.8096516204.

It can be divided in two parts, 1944 and 216, that multiplied together give a square (419904 = 648²).

The spelling of 1944216 in words is "one million, nine hundred forty-four thousand, two hundred sixteen".