2421272417 has 4 divisors (see below), whose sum is σ = 2430479040. Its totient is φ = 2412065796.

The previous prime is 2421272407. The next prime is 2421272443. The reversal of 2421272417 is 7142721242.

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 a cyclic number.

It is not a de Polignac number, because 2421272417 - 2¹² = 2421268321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2421272407) 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, 4602917 + ... + 4603442.

It is an arithmetic number, because the mean of its divisors is an integer number (607619760).

Almost surely, 2^2421272417 is an apocalyptic number.

It is an amenable number.

2421272417 is a deficient number, since it is larger than the sum of its proper divisors (9206623).

2421272417 is an equidigital number, since it uses as much as digits as its factorization.

2421272417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9206622.

The product of its digits is 12544, while the sum is 32.

The square root of 2421272417 is about 49206.4265823073. The cubic root of 2421272417 is about 1342.8099527657.

Adding to 2421272417 its reverse (7142721242), we get a palindrome (9563993659).

The spelling of 2421272417 in words is "two billion, four hundred twenty-one million, two hundred seventy-two thousand, four hundred seventeen".