240623269 has 2 divisors, whose sum is σ = 240623270. Its totient is φ = 240623268.

The previous prime is 240623267. The next prime is 240623281. The reversal of 240623269 is 962326042.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137194369 + 103428900 = 11713^2 + 10170^2 .

It is a cyclic number.

It is not a de Polignac number, because 240623269 - 2¹ = 240623267 is a prime.

It is a super-2 number, since 2×240623269² = 115799115168492722, which contains 22 as substring.

Together with 240623267, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240623261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120311634 + 120311635.

It is an arithmetic number, because the mean of its divisors is an integer number (120311635).

Almost surely, 2^240623269 is an apocalyptic number.

It is an amenable number.

240623269 is a deficient number, since it is larger than the sum of its proper divisors (1).

240623269 is an equidigital number, since it uses as much as digits as its factorization.

240623269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 240623269 is about 15512.0362622062. The cubic root of 240623269 is about 621.9839922060.

The spelling of 240623269 in words is "two hundred forty million, six hundred twenty-three thousand, two hundred sixty-nine".