2286421 has 4 divisors (see below), whose sum is σ = 2289472. Its totient is φ = 2283372.

The previous prime is 2286379. The next prime is 2286437. The reversal of 2286421 is 1246822.

It is a happy number.

2286421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 2286421 - 2⁷ = 2286293 is a prime.

It is a Duffinian number.

2286421 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2286481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 466 + ... + 2188.

It is an arithmetic number, because the mean of its divisors is an integer number (572368).

2^2286421 is an apocalyptic number.

It is an amenable number.

2286421 is a deficient number, since it is larger than the sum of its proper divisors (3051).

2286421 is a wasteful number, since it uses less digits than its factorization.

2286421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3050.

The product of its digits is 1536, while the sum is 25.

The square root of 2286421 is about 1512.0915977546. The cubic root of 2286421 is about 131.7403258910.

The spelling of 2286421 in words is "two million, two hundred eighty-six thousand, four hundred twenty-one".