1944426 has 32 divisors (see below), whose sum is σ = 4494528. Its totient is φ = 554240.

The previous prime is 1944401. The next prime is 1944457. The reversal of 1944426 is 6244491.

It is a junction number, because it is equal to n+sod(n) for n = 1944393 and 1944402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256 + ... + 1988.

It is an arithmetic number, because the mean of its divisors is an integer number (140454).

2^1944426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1944426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2247264).

1944426 is an abundant number, since it is smaller than the sum of its proper divisors (2550102).

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

1944426 is a wasteful number, since it uses less digits than its factorization.

1944426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1766.

The product of its digits is 6912, while the sum is 30.

The square root of 1944426 is about 1394.4267639428. The cubic root of 1944426 is about 124.8141451340.

The spelling of 1944426 in words is "one million, nine hundred forty-four thousand, four hundred twenty-six".