2420261 has 2 divisors, whose sum is σ = 2420262. Its totient is φ = 2420260.

The previous prime is 2420251. The next prime is 2420269. The reversal of 2420261 is 1620242.

2420261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2265025 + 155236 = 1505^2 + 394^2 .

It is a cyclic number.

It is not a de Polignac number, because 2420261 - 2¹⁰ = 2419237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2420269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210130 + 1210131.

It is an arithmetic number, because the mean of its divisors is an integer number (1210131).

2^2420261 is an apocalyptic number.

It is an amenable number.

2420261 is a deficient number, since it is larger than the sum of its proper divisors (1).

2420261 is an equidigital number, since it uses as much as digits as its factorization.

2420261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2420261 is about 1555.7188049259. The cubic root of 2420261 is about 134.2622953297.

The spelling of 2420261 in words is "two million, four hundred twenty thousand, two hundred sixty-one".