2420641 has 4 divisors (see below), whose sum is σ = 2472192. Its totient is φ = 2369092.

The previous prime is 2420633. The next prime is 2420687. The reversal of 2420641 is 1460242.

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 2420641 - 2³ = 2420633 is a prime.

It is a Duffinian number.

2420641 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2420611) 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, 25705 + ... + 25798.

It is an arithmetic number, because the mean of its divisors is an integer number (618048).

2^2420641 is an apocalyptic number.

It is an amenable number.

2420641 is a deficient number, since it is larger than the sum of its proper divisors (51551).

2420641 is an equidigital number, since it uses as much as digits as its factorization.

2420641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51550.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2420641 is about 1555.8409301725. The cubic root of 2420641 is about 134.2693217072.

Adding to 2420641 its reverse (1460242), we get a palindrome (3880883).

The spelling of 2420641 in words is "two million, four hundred twenty thousand, six hundred forty-one".