2421895 has 8 divisors (see below), whose sum is σ = 3321504. Its totient is φ = 1660704.

The previous prime is 2421893. The next prime is 2421901. The reversal of 2421895 is 5981242.

2421895 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2421895 - 2¹ = 2421893 is a prime.

It is a Duffinian number.

2421895 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421893) 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 7 ways as a sum of consecutive naturals, for example, 34564 + ... + 34633.

It is an arithmetic number, because the mean of its divisors is an integer number (415188).

2^2421895 is an apocalyptic number.

2421895 is a deficient number, since it is larger than the sum of its proper divisors (899609).

2421895 is an equidigital number, since it uses as much as digits as its factorization.

2421895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69209.

The product of its digits is 5760, while the sum is 31.

The square root of 2421895 is about 1556.2438754900. The cubic root of 2421895 is about 134.2925035370.

The spelling of 2421895 in words is "two million, four hundred twenty-one thousand, eight hundred ninety-five".