1944109 has 8 divisors (see below), whose sum is σ = 2005920. Its totient is φ = 1883376.

The previous prime is 1944079. The next prime is 1944113. The reversal of 1944109 is 9014491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1944109 - 2⁹ = 1943597 is a prime.

It is a Duffinian number.

1944109 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1944169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4699 + ... + 5095.

It is an arithmetic number, because the mean of its divisors is an integer number (250740).

2^1944109 is an apocalyptic number.

It is an amenable number.

1944109 is a deficient number, since it is larger than the sum of its proper divisors (61811).

1944109 is an equidigital number, since it uses as much as digits as its factorization.

1944109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 1944109 is about 1394.3130925298. The cubic root of 1944109 is about 124.8073619438.

The spelling of 1944109 in words is "one million, nine hundred forty-four thousand, one hundred nine".