2943406 has 4 divisors (see below), whose sum is σ = 4415112. Its totient is φ = 1471702.

The previous prime is 2943403. The next prime is 2943427. The reversal of 2943406 is 6043492.

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

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 735850 + ... + 735853.

It is an arithmetic number, because the mean of its divisors is an integer number (1103778).

2^2943406 is an apocalyptic number.

2943406 is a deficient number, since it is larger than the sum of its proper divisors (1471706).

2943406 is a wasteful number, since it uses less digits than its factorization.

2943406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1471705.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 2943406 is about 1715.6357422250. The cubic root of 2943406 is about 143.3122750146.

Adding to 2943406 its reverse (6043492), we get a palindrome (8986898).

The spelling of 2943406 in words is "two million, nine hundred forty-three thousand, four hundred six".