1944224 has 12 divisors (see below), whose sum is σ = 3827754. Its totient is φ = 972096.

The previous prime is 1944223. The next prime is 1944281. The reversal of 1944224 is 4224491.

It can be written as a sum of positive squares in only one way, i.e., 1607824 + 336400 = 1268^2 + 580^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1944193 and 1944202.

It is not an unprimeable number, because it can be changed into a prime (1944223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30347 + ... + 30410.

2^1944224 is an apocalyptic number.

It is an amenable number.

1944224 is a deficient number, since it is larger than the sum of its proper divisors (1883530).

1944224 is an equidigital number, since it uses as much as digits as its factorization.

1944224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60767 (or 60759 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

The square root of 1944224 is about 1394.3543308643. The cubic root of 1944224 is about 124.8098228078.

The spelling of 1944224 in words is "one million, nine hundred forty-four thousand, two hundred twenty-four".