2420451205 has 4 divisors (see below), whose sum is σ = 2904541452. Its totient is φ = 1936360960.

The previous prime is 2420451203. The next prime is 2420451227. The reversal of 2420451205 is 5021540242.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5021540242 = 2 ⋅2510770121.

It can be written as a sum of positive squares in 2 ways, for example, as 1422270369 + 998180836 = 37713^2 + 31594^2 .

It is not a de Polignac number, because 2420451205 - 2¹ = 2420451203 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2420451205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2420451203) 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, 242045116 + ... + 242045125.

It is an arithmetic number, because the mean of its divisors is an integer number (726135363).

Almost surely, 2^2420451205 is an apocalyptic number.

It is an amenable number.

2420451205 is a deficient number, since it is larger than the sum of its proper divisors (484090247).

2420451205 is an equidigital number, since it uses as much as digits as its factorization.

2420451205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484090246.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 2420451205 is about 49198.0813142139. The cubic root of 2420451205 is about 1342.6581240093.

Adding to 2420451205 its reverse (5021540242), we get a palindrome (7441991447).

The spelling of 2420451205 in words is "two billion, four hundred twenty million, four hundred fifty-one thousand, two hundred five".