1872944 has 40 divisors (see below), whose sum is σ = 3920880. Its totient is φ = 864000.

The previous prime is 1872943. The next prime is 1872953. The reversal of 1872944 is 4492781.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1872943) 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, 18494 + ... + 18594.

It is an arithmetic number, because the mean of its divisors is an integer number (98022).

2^1872944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1872944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1960440).

1872944 is an abundant number, since it is smaller than the sum of its proper divisors (2047936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1872944 is a wasteful number, since it uses less digits than its factorization.

1872944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189 (or 183 counting only the distinct ones).

The product of its digits is 16128, while the sum is 35.

The square root of 1872944 is about 1368.5554427936. Note that the first 3 decimals coincide. The cubic root of 1872944 is about 123.2655158366.

The spelling of 1872944 in words is "one million, eight hundred seventy-two thousand, nine hundred forty-four".