240206340 has 48 divisors (see below), whose sum is σ = 733723200. Its totient is φ = 58231680.

The previous prime is 240206339. The next prime is 240206357. The reversal of 240206340 is 43602042.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181315 + ... + 182634.

It is an arithmetic number, because the mean of its divisors is an integer number (15285900).

Almost surely, 2^240206340 is an apocalyptic number.

240206340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240206340 is an abundant number, since it is smaller than the sum of its proper divisors (493516860).

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

240206340 is a wasteful number, since it uses less digits than its factorization.

240206340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363972 (or 363970 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 240206340 is about 15498.5915489118. The cubic root of 240206340 is about 621.6245463855.

Adding to 240206340 its reverse (43602042), we get a palindrome (283808382).

The spelling of 240206340 in words is "two hundred forty million, two hundred six thousand, three hundred forty".