240143140 has 24 divisors (see below), whose sum is σ = 506512440. Its totient is φ = 95635968.

The previous prime is 240143047. The next prime is 240143179. The reversal of 240143140 is 41341042.

It can be written as a sum of positive squares in 4 ways, for example, as 110502144 + 129640996 = 10512^2 + 11386^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21637 + ... + 30796.

It is an arithmetic number, because the mean of its divisors is an integer number (21104685).

Almost surely, 2^240143140 is an apocalyptic number.

240143140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240143140 is an abundant number, since it is smaller than the sum of its proper divisors (266369300).

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

240143140 is a wasteful number, since it uses less digits than its factorization.

240143140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52671 (or 52669 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 240143140 is about 15496.5525198349. The cubic root of 240143140 is about 621.5700236540.

Adding to 240143140 its reverse (41341042), we get a palindrome (281484182).

It can be divided in two parts, 240 and 143140, that added together give a triangular number (143380 = T₅₃₅).

The spelling of 240143140 in words is "two hundred forty million, one hundred forty-three thousand, one hundred forty".