2944421 has 4 divisors (see below), whose sum is σ = 2957292. Its totient is φ = 2931552.

The previous prime is 2944397. The next prime is 2944427. The reversal of 2944421 is 1244492.

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 429025 + 2515396 = 655^2 + 1586^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2944421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2944427) 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, 6086 + ... + 6551.

It is an arithmetic number, because the mean of its divisors is an integer number (739323).

2^2944421 is an apocalyptic number.

It is an amenable number.

2944421 is a deficient number, since it is larger than the sum of its proper divisors (12871).

2944421 is a wasteful number, since it uses less digits than its factorization.

2944421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12870.

The product of its digits is 2304, while the sum is 26.

The square root of 2944421 is about 1715.9315254403. The cubic root of 2944421 is about 143.3287463228.

The spelling of 2944421 in words is "two million, nine hundred forty-four thousand, four hundred twenty-one".