240120660 has 96 divisors (see below), whose sum is σ = 732977280. Its totient is φ = 58378752.

The previous prime is 240120649. The next prime is 240120677. The reversal of 240120660 is 66021042.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 in 31 ways as a sum of consecutive naturals, for example, 62886 + ... + 66594.

It is an arithmetic number, because the mean of its divisors is an integer number (7635180).

Almost surely, 2^240120660 is an apocalyptic number.

240120660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 240120660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (366488640).

240120660 is an abundant number, since it is smaller than the sum of its proper divisors (492856620).

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

240120660 is a wasteful number, since it uses less digits than its factorization.

240120660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3817 (or 3815 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 240120660 is about 15495.8271802444. The cubic root of 240120660 is about 621.5506278190.

The spelling of 240120660 in words is "two hundred forty million, one hundred twenty thousand, six hundred sixty".