2420565 has 16 divisors (see below), whose sum is σ = 4426368. Its totient is φ = 1106496.

The previous prime is 2420557. The next prime is 2420567. The reversal of 2420565 is 5650242.

It is not a de Polignac number, because 2420565 - 2³ = 2420557 is a prime.

2420565 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2420567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11422 + ... + 11631.

It is an arithmetic number, because the mean of its divisors is an integer number (276648).

2^2420565 is an apocalyptic number.

It is an amenable number.

2420565 is a deficient number, since it is larger than the sum of its proper divisors (2005803).

2420565 is a wasteful number, since it uses less digits than its factorization.

2420565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23068.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 2420565 is about 1555.8165058901. The cubic root of 2420565 is about 134.2679164905.

The spelling of 2420565 in words is "two million, four hundred twenty thousand, five hundred sixty-five".