2466421 has 4 divisors (see below), whose sum is σ = 2551500. Its totient is φ = 2381344.

The previous prime is 2466407. The next prime is 2466427. The reversal of 2466421 is 1246642.

2466421 = 1110² + 1111².

2466421 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 an emirpimes, since its reverse is a distinct semiprime: 1246642 = 2 ⋅623321.

It can be written as a sum of positive squares in 2 ways, for example, as 1232100 + 1234321 = 1110^2 + 1111^2 .

It is a cyclic number.

It is not a de Polignac number, because 2466421 - 2⁵ = 2466389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2466427) 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, 42496 + ... + 42553.

It is an arithmetic number, because the mean of its divisors is an integer number (637875).

2^2466421 is an apocalyptic number.

2466421 is the 1111-st centered square number.

It is an amenable number.

2466421 is a deficient number, since it is larger than the sum of its proper divisors (85079).

2466421 is an equidigital number, since it uses as much as digits as its factorization.

2466421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85078.

The product of its digits is 2304, while the sum is 25.

The square root of 2466421 is about 1570.4843202019. The cubic root of 2466421 is about 135.1104902492.

The spelling of 2466421 in words is "two million, four hundred sixty-six thousand, four hundred twenty-one".