2246421 has 4 divisors (see below), whose sum is σ = 2995232. Its totient is φ = 1497612.

The previous prime is 2246417. The next prime is 2246467. The reversal of 2246421 is 1246422.

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.

It is not a de Polignac number, because 2246421 - 2² = 2246417 is a prime.

It is a d-powerful number, because it can be written as 2⁹ + 2¹⁷ + 4 + 6⁴ + 4⁷ + 2²¹ + 1 .

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2246411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 374401 + ... + 374406.

It is an arithmetic number, because the mean of its divisors is an integer number (748808).

2^2246421 is an apocalyptic number.

It is an amenable number.

2246421 is a deficient number, since it is larger than the sum of its proper divisors (748811).

2246421 is an equidigital number, since it uses as much as digits as its factorization.

2246421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748810.

The product of its digits is 768, while the sum is 21.

The square root of 2246421 is about 1498.8065252060. The cubic root of 2246421 is about 130.9675540724.

Subtracting from 2246421 its reverse (1246422), we obtain a palindrome (999999).

The spelling of 2246421 in words is "two million, two hundred forty-six thousand, four hundred twenty-one".