1944002 has 4 divisors (see below), whose sum is σ = 2916006. Its totient is φ = 972000.

The previous prime is 1943993. The next prime is 1944011. The reversal of 1944002 is 2004491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2004491 = 31 ⋅64661.

It is an interprime number because it is at equal distance from previous prime (1943993) and next prime (1944011).

It can be written as a sum of positive squares in only one way, i.e., 1466521 + 477481 = 1211^2 + 691^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 485999 + ... + 486002.

2^1944002 is an apocalyptic number.

1944002 is a deficient number, since it is larger than the sum of its proper divisors (972004).

1944002 is an equidigital number, since it uses as much as digits as its factorization.

1944002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972003.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1944002 is about 1394.2747218536. The cubic root of 1944002 is about 124.8050721832.

Adding to 1944002 its reverse (2004491), we get a palindrome (3948493).

The spelling of 1944002 in words is "one million, nine hundred forty-four thousand, two".