2421356 has 12 divisors (see below), whose sum is σ = 4842768. Its totient is φ = 1037712.

The previous prime is 2421347. The next prime is 2421383. The reversal of 2421356 is 6531242.

2421356 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

2421356 is an admirable number.

It is an unprimeable number.

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, 43211 + ... + 43266.

It is an arithmetic number, because the mean of its divisors is an integer number (403564).

2^2421356 is an apocalyptic number.

It is an amenable number.

2421356 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2421356 is a wasteful number, since it uses less digits than its factorization.

2421356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86488 (or 86486 counting only the distinct ones).

The product of its digits is 1440, while the sum is 23.

The square root of 2421356 is about 1556.0706924815. The cubic root of 2421356 is about 134.2825403979.

Adding to 2421356 its reverse (6531242), we get a palindrome (8952598).

The spelling of 2421356 in words is "two million, four hundred twenty-one thousand, three hundred fifty-six".