2944393 has 4 divisors (see below), whose sum is σ = 2947840. Its totient is φ = 2940948.

The previous prime is 2944379. The next prime is 2944397. The reversal of 2944393 is 3934492.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2944393 is a prime.

It is a Duffinian number.

2944393 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2944397) 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, 628 + ... + 2506.

It is an arithmetic number, because the mean of its divisors is an integer number (736960).

2^2944393 is an apocalyptic number.

It is an amenable number.

2944393 is a deficient number, since it is larger than the sum of its proper divisors (3447).

2944393 is a wasteful number, since it uses less digits than its factorization.

2944393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3446.

The product of its digits is 23328, while the sum is 34.

The square root of 2944393 is about 1715.9233665872. The cubic root of 2944393 is about 143.3282919926.

Subtracting 2944393 from its reverse (3934492), we obtain a palindrome (990099).

The spelling of 2944393 in words is "two million, nine hundred forty-four thousand, three hundred ninety-three".