1944845 has 16 divisors (see below), whose sum is σ = 2690688. Its totient is φ = 1321920.

The previous prime is 1944841. The next prime is 1944853. The reversal of 1944845 is 5484491.

It is a happy number.

It is not a de Polignac number, because 1944845 - 2² = 1944841 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1944841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6182 + ... + 6488.

It is an arithmetic number, because the mean of its divisors is an integer number (168168).

2^1944845 is an apocalyptic number.

It is an amenable number.

1944845 is a deficient number, since it is larger than the sum of its proper divisors (745843).

1944845 is a wasteful number, since it uses less digits than its factorization.

1944845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500.

The product of its digits is 23040, while the sum is 35.

The square root of 1944845 is about 1394.5769967987. The cubic root of 1944845 is about 124.8231097969.

The spelling of 1944845 in words is "one million, nine hundred forty-four thousand, eight hundred forty-five".