2421427 has 4 divisors (see below), whose sum is σ = 2445040. Its totient is φ = 2397816.

The previous prime is 2421421. The next prime is 2421439. The reversal of 2421427 is 7241242.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2421427 - 2¹¹ = 2419379 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2421398 and 2421407.

It is not an unprimeable number, because it can be changed into a prime (2421421) 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, 11652 + ... + 11857.

It is an arithmetic number, because the mean of its divisors is an integer number (611260).

2^2421427 is an apocalyptic number.

2421427 is a deficient number, since it is larger than the sum of its proper divisors (23613).

2421427 is a wasteful number, since it uses less digits than its factorization.

2421427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23612.

The product of its digits is 896, while the sum is 22.

The square root of 2421427 is about 1556.0935061879. The cubic root of 2421427 is about 134.2838528811.

Adding to 2421427 its reverse (7241242), we get a palindrome (9662669).

The spelling of 2421427 in words is "two million, four hundred twenty-one thousand, four hundred twenty-seven".