240609469 has 2 divisors, whose sum is σ = 240609470. Its totient is φ = 240609468.

The previous prime is 240609461. The next prime is 240609503. The reversal of 240609469 is 964906042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 229916569 + 10692900 = 15163^2 + 3270^2 .

It is a cyclic number.

It is not a de Polignac number, because 240609469 - 2³ = 240609461 is a prime.

It is a super-2 number, since 2×240609469² = 115785833144923922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240609461) 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, 120304734 + 120304735.

It is an arithmetic number, because the mean of its divisors is an integer number (120304735).

Almost surely, 2^240609469 is an apocalyptic number.

It is an amenable number.

240609469 is a deficient number, since it is larger than the sum of its proper divisors (1).

240609469 is an equidigital number, since it uses as much as digits as its factorization.

240609469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 240609469 is about 15511.5914399523. The cubic root of 240609469 is about 621.9721014978.

The spelling of 240609469 in words is "two hundred forty million, six hundred nine thousand, four hundred sixty-nine".