240698369 has 2 divisors, whose sum is σ = 240698370. Its totient is φ = 240698368.

The previous prime is 240698329. The next prime is 240698383. The reversal of 240698369 is 963896042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 233478400 + 7219969 = 15280^2 + 2687^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240698369 is a prime.

It is a super-2 number, since 2×240698369² = 115871409678520322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (240698309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120349184 + 120349185.

It is an arithmetic number, because the mean of its divisors is an integer number (120349185).

Almost surely, 2^240698369 is an apocalyptic number.

It is an amenable number.

240698369 is a deficient number, since it is larger than the sum of its proper divisors (1).

240698369 is an equidigital number, since it uses as much as digits as its factorization.

240698369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 559872, while the sum is 47.

The square root of 240698369 is about 15514.4567742477. The cubic root of 240698369 is about 622.0486938164.

The spelling of 240698369 in words is "two hundred forty million, six hundred ninety-eight thousand, three hundred sixty-nine".