2420380465 has 4 divisors (see below), whose sum is σ = 2904456564. Its totient is φ = 1936304368.

The previous prime is 2420380447. The next prime is 2420380471. The reversal of 2420380465 is 5640830242.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1315948176 + 1104432289 = 36276^2 + 33233^2 .

It is a cyclic number.

It is not a de Polignac number, because 2420380465 - 2²¹ = 2418283313 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 2420380465.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242038042 + ... + 242038051.

It is an arithmetic number, because the mean of its divisors is an integer number (726114141).

Almost surely, 2^2420380465 is an apocalyptic number.

It is an amenable number.

2420380465 is a deficient number, since it is larger than the sum of its proper divisors (484076099).

2420380465 is an equidigital number, since it uses as much as digits as its factorization.

2420380465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484076098.

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 2420380465 is about 49197.3623784853. The cubic root of 2420380465 is about 1342.6450437262.

The spelling of 2420380465 in words is "two billion, four hundred twenty million, three hundred eighty thousand, four hundred sixty-five".