1906944 has 72 divisors (see below), whose sum is σ = 5494272. Its totient is φ = 583680.

The previous prime is 1906909. The next prime is 1906963. The reversal of 1906944 is 4496091.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9889 + ... + 10079.

2^1906944 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 1906944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2747136).

1906944 is an abundant number, since it is smaller than the sum of its proper divisors (3587328).

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

1906944 is a wasteful number, since it uses less digits than its factorization.

1906944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 1906944 is about 1380.9214315087. The cubic root of 1906944 is about 124.0069368301.

It can be divided in two parts, 1906 and 944, that added together give a triangular number (2850 = T₇₅).

The spelling of 1906944 in words is "one million, nine hundred six thousand, nine hundred forty-four".