944381 has 4 divisors (see below), whose sum is σ = 947100. Its totient is φ = 941664.

The previous prime is 944369. The next prime is 944387. The reversal of 944381 is 183449.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 828100 + 116281 = 910^2 + 341^2 .

It is a cyclic number.

It is not a de Polignac number, because 944381 - 2¹⁰ = 943357 is a prime.

It is a super-2 number, since 2×944381² = 1783710946322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 944381.

It is not an unprimeable number, because it can be changed into a prime (944387) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 746 + ... + 1563.

It is an arithmetic number, because the mean of its divisors is an integer number (236775).

2⁹⁴⁴³⁸¹ is an apocalyptic number.

It is an amenable number.

944381 is a deficient number, since it is larger than the sum of its proper divisors (2719).

944381 is a wasteful number, since it uses less digits than its factorization.

944381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2718.

The product of its digits is 3456, while the sum is 29.

The square root of 944381 is about 971.7926733620. The cubic root of 944381 is about 98.1105582760.

The spelling of 944381 in words is "nine hundred forty-four thousand, three hundred eighty-one".