1944164 has 6 divisors (see below), whose sum is σ = 3402294. Its totient is φ = 972080.

The previous prime is 1944157. The next prime is 1944169. The reversal of 1944164 is 4614491.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1304164 + 640000 = 1142^2 + 800^2 .

It is not an unprimeable number, because it can be changed into a prime (1944169) 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 as a sum of consecutive naturals, namely, 243017 + ... + 243024.

It is an arithmetic number, because the mean of its divisors is an integer number (567049).

2^1944164 is an apocalyptic number.

It is an amenable number.

1944164 is a deficient number, since it is larger than the sum of its proper divisors (1458130).

1944164 is a wasteful number, since it uses less digits than its factorization.

1944164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486045 (or 486043 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 1944164 is about 1394.3328153637. The cubic root of 1944164 is about 124.8085388909.

The spelling of 1944164 in words is "one million, nine hundred forty-four thousand, one hundred sixty-four".