2818406 has 4 divisors (see below), whose sum is σ = 4227612. Its totient is φ = 1409202.

The previous prime is 2818399. The next prime is 2818411. The reversal of 2818406 is 6048182.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 704600 + ... + 704603.

It is an arithmetic number, because the mean of its divisors is an integer number (1056903).

2^2818406 is an apocalyptic number.

2818406 is a deficient number, since it is larger than the sum of its proper divisors (1409206).

2818406 is a wasteful number, since it uses less digits than its factorization.

2818406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409205.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 2818406 is about 1678.8108886947. The cubic root of 2818406 is about 141.2541398531.

The spelling of 2818406 in words is "two million, eight hundred eighteen thousand, four hundred six".