2448421 has 4 divisors (see below), whose sum is σ = 2451852. Its totient is φ = 2444992.

The previous prime is 2448389. The next prime is 2448427. The reversal of 2448421 is 1248442.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1079521 + 1368900 = 1039^2 + 1170^2 .

It is a cyclic number.

It is not a de Polignac number, because 2448421 - 2⁵ = 2448389 is a prime.

It is a Duffinian number.

2448421 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2448427) 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, 196 + ... + 2221.

It is an arithmetic number, because the mean of its divisors is an integer number (612963).

2^2448421 is an apocalyptic number.

It is an amenable number.

2448421 is a deficient number, since it is larger than the sum of its proper divisors (3431).

2448421 is a wasteful number, since it uses less digits than its factorization.

2448421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3430.

The product of its digits is 2048, while the sum is 25.

The square root of 2448421 is about 1564.7431099065. The cubic root of 2448421 is about 134.7810075471.

The spelling of 2448421 in words is "two million, four hundred forty-eight thousand, four hundred twenty-one".