1944243 has 32 divisors (see below), whose sum is σ = 3358720. Its totient is φ = 1102248.

The previous prime is 1944223. The next prime is 1944281. The reversal of 1944243 is 3424491.

It is not a de Polignac number, because 1944243 - 2⁵ = 1944211 is a prime.

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

It is a Duffinian number.

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15246 + ... + 15372.

It is an arithmetic number, because the mean of its divisors is an integer number (104960).

2^1944243 is an apocalyptic number.

1944243 is a deficient number, since it is larger than the sum of its proper divisors (1414477).

1944243 is an frugal number, since it uses more digits than its factorization.

1944243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 137 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 1944243 is about 1394.3611440369. The cubic root of 1944243 is about 124.8102293760.

It can be divided in two parts, 1944 and 243, that added together give a 7-th power (2187 = 3⁷).

The spelling of 1944243 in words is "one million, nine hundred forty-four thousand, two hundred forty-three".