2244621 has 4 divisors (see below), whose sum is σ = 2992832. Its totient is φ = 1496412.

The previous prime is 2244611. The next prime is 2244623. The reversal of 2244621 is 1264422.

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 2244621 - 2⁵ = 2244589 is a prime.

It is a d-powerful number, because it can be written as 2 + 2¹⁷ + 4 + 4⁷ + 6 + 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 (2244623) 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, 374101 + ... + 374106.

It is an arithmetic number, because the mean of its divisors is an integer number (748208).

2^2244621 is an apocalyptic number.

It is an amenable number.

2244621 is a deficient number, since it is larger than the sum of its proper divisors (748211).

2244621 is an equidigital number, since it uses as much as digits as its factorization.

2244621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748210.

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

The square root of 2244621 is about 1498.2059271008. The cubic root of 2244621 is about 130.9325644021.

The spelling of 2244621 in words is "two million, two hundred forty-four thousand, six hundred twenty-one".