240396589 has 2 divisors, whose sum is σ = 240396590. Its totient is φ = 240396588.

The previous prime is 240396553. The next prime is 240396613. The reversal of 240396589 is 985693042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 232806564 + 7590025 = 15258^2 + 2755^2 .

It is a cyclic number.

It is not a de Polignac number, because 240396589 - 2¹¹ = 240394541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240396509) 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, 120198294 + 120198295.

It is an arithmetic number, because the mean of its divisors is an integer number (120198295).

Almost surely, 2^240396589 is an apocalyptic number.

It is an amenable number.

240396589 is a deficient number, since it is larger than the sum of its proper divisors (1).

240396589 is an equidigital number, since it uses as much as digits as its factorization.

240396589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 46.

The square root of 240396589 is about 15504.7279563364. The cubic root of 240396589 is about 621.7886167699.

It can be divided in two parts, 24039 and 6589, that added together give a triangular number (30628 = T₂₄₇).

The spelling of 240396589 in words is "two hundred forty million, three hundred ninety-six thousand, five hundred eighty-nine".