240794621 has 2 divisors, whose sum is σ = 240794622. Its totient is φ = 240794620.

The previous prime is 240794531. The next prime is 240794623. The reversal of 240794621 is 126497042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 180902500 + 59892121 = 13450^2 + 7739^2 .

It is a cyclic number.

It is not a de Polignac number, because 240794621 - 2¹⁸ = 240532477 is a prime.

Together with 240794623, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240794623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120397310 + 120397311.

It is an arithmetic number, because the mean of its divisors is an integer number (120397311).

Almost surely, 2^240794621 is an apocalyptic number.

It is an amenable number.

240794621 is a deficient number, since it is larger than the sum of its proper divisors (1).

240794621 is an equidigital number, since it uses as much as digits as its factorization.

240794621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 240794621 is about 15517.5584741930. The cubic root of 240794621 is about 622.1315990338.

The spelling of 240794621 in words is "two hundred forty million, seven hundred ninety-four thousand, six hundred twenty-one".