1945844 has 12 divisors (see below), whose sum is σ = 3421824. Its totient is φ = 968184.

The previous prime is 1945843. The next prime is 1945859. The reversal of 1945844 is 4485491.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1945843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164 + ... + 1979.

It is an arithmetic number, because the mean of its divisors is an integer number (285152).

2^1945844 is an apocalyptic number.

It is an amenable number.

1945844 is a deficient number, since it is larger than the sum of its proper divisors (1475980).

1945844 is a wasteful number, since it uses less digits than its factorization.

1945844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2374 (or 2372 counting only the distinct ones).

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

The square root of 1945844 is about 1394.9351239395. The cubic root of 1945844 is about 124.8444785850.

The spelling of 1945844 in words is "one million, nine hundred forty-five thousand, eight hundred forty-four".