2943409 has 8 divisors (see below), whose sum is σ = 3382400. Its totient is φ = 2509056.

The previous prime is 2943403. The next prime is 2943427. The reversal of 2943409 is 9043492.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2943409 - 2¹³ = 2935217 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2943403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337 + ... + 2449.

It is an arithmetic number, because the mean of its divisors is an integer number (422800).

2^2943409 is an apocalyptic number.

It is an amenable number.

2943409 is a deficient number, since it is larger than the sum of its proper divisors (438991).

2943409 is a wasteful number, since it uses less digits than its factorization.

2943409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2319.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 2943409 is about 1715.6366165363. The cubic root of 2943409 is about 143.3123237038.

The spelling of 2943409 in words is "two million, nine hundred forty-three thousand, four hundred nine".