240431140 has 48 divisors (see below), whose sum is σ = 512713152. Its totient is φ = 94697856.

The previous prime is 240431137. The next prime is 240431171. The reversal of 240431140 is 41134042.

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 15 ways as a sum of consecutive naturals, for example, 605422 + ... + 605818.

It is an arithmetic number, because the mean of its divisors is an integer number (10681524).

Almost surely, 2^240431140 is an apocalyptic number.

240431140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240431140 is an abundant number, since it is smaller than the sum of its proper divisors (272282012).

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

240431140 is a wasteful number, since it uses less digits than its factorization.

240431140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796 (or 794 counting only the distinct ones).

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

The square root of 240431140 is about 15505.8421248251. The cubic root of 240431140 is about 621.8184041994.

Adding to 240431140 its reverse (41134042), we get a palindrome (281565182).

The spelling of 240431140 in words is "two hundred forty million, four hundred thirty-one thousand, one hundred forty".