240355780 has 36 divisors (see below), whose sum is σ = 587157228. Its totient is φ = 82407360.

The previous prime is 240355777. The next prime is 240355789. The reversal of 240355780 is 87553042.

It is a happy number.

240355780 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 178008964 + 62346816 = 13342^2 + 7896^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (240355789) 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 11 ways as a sum of consecutive naturals, for example, 121651 + ... + 123610.

It is an arithmetic number, because the mean of its divisors is an integer number (16309923).

Almost surely, 2^240355780 is an apocalyptic number.

240355780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240355780 is an abundant number, since it is smaller than the sum of its proper divisors (346801448).

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

240355780 is a wasteful number, since it uses less digits than its factorization.

240355780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245284 (or 245275 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 240355780 is about 15503.4118825502. The cubic root of 240355780 is about 621.7534304586.

The spelling of 240355780 in words is "two hundred forty million, three hundred fifty-five thousand, seven hundred eighty".