240343240 has 32 divisors (see below), whose sum is σ = 541323000. Its totient is φ = 96039424.

The previous prime is 240343223. The next prime is 240343241. The reversal of 240343240 is 42343042.

It can be written as a sum of positive squares in 4 ways, for example, as 240188004 + 155236 = 15498^2 + 394^2 .

It is not an unprimeable number, because it can be changed into a prime (240343241) 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 in 7 ways as a sum of consecutive naturals, for example, 46716 + ... + 51604.

Almost surely, 2^240343240 is an apocalyptic number.

240343240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240343240 is an abundant number, since it is smaller than the sum of its proper divisors (300979760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

240343240 is a wasteful number, since it uses less digits than its factorization.

240343240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6129 (or 6125 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 240343240 is about 15503.0074501691. The cubic root of 240343240 is about 621.7426174275.

Adding to 240343240 its reverse (42343042), we get a palindrome (282686282).

The spelling of 240343240 in words is "two hundred forty million, three hundred forty-three thousand, two hundred forty".