2440621 has 2 divisors, whose sum is σ = 2440622. Its totient is φ = 2440620.

The previous prime is 2440591. The next prime is 2440643. The reversal of 2440621 is 1260442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1726596 + 714025 = 1314^2 + 845^2 .

It is a cyclic number.

It is not a de Polignac number, because 2440621 - 2⁵ = 2440589 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2440681) 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 as a sum of consecutive naturals, namely, 1220310 + 1220311.

It is an arithmetic number, because the mean of its divisors is an integer number (1220311).

2^2440621 is an apocalyptic number.

It is an amenable number.

2440621 is a deficient number, since it is larger than the sum of its proper divisors (1).

2440621 is an equidigital number, since it uses as much as digits as its factorization.

2440621 is an odious number, because the sum of its binary digits is odd.

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

The square root of 2440621 is about 1562.2486997914. The cubic root of 2440621 is about 134.6377301430.

The spelling of 2440621 in words is "two million, four hundred forty thousand, six hundred twenty-one".