2421401 has 4 divisors (see below), whose sum is σ = 2427600. Its totient is φ = 2415204.

The previous prime is 2421389. The next prime is 2421403. The reversal of 2421401 is 1041242.

2421401 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 an emirpimes, since its reverse is a distinct semiprime: 1041242 = 2 ⋅520621.

It is a cyclic number.

It is not a de Polignac number, because 2421401 - 2¹⁰ = 2420377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2421403) 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, 2471 + ... + 3308.

It is an arithmetic number, because the mean of its divisors is an integer number (606900).

2^2421401 is an apocalyptic number.

It is an amenable number.

2421401 is a deficient number, since it is larger than the sum of its proper divisors (6199).

2421401 is an equidigital number, since it uses as much as digits as its factorization.

2421401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6198.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2421401 is about 1556.0851519117. The cubic root of 2421401 is about 134.2833722565.

Adding to 2421401 its reverse (1041242), we get a palindrome (3462643).

The spelling of 2421401 in words is "two million, four hundred twenty-one thousand, four hundred one".