240740 has 12 divisors (see below), whose sum is σ = 505596. Its totient is φ = 96288.

The previous prime is 240739. The next prime is 240743. The reversal of 240740 is 47042.

240740 is digitally balanced in base 2, 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 30976 + 209764 = 176^2 + 458^2 .

240740 is a modest number, since divided by 740 gives 240 as remainder.

It is not an unprimeable number, because it can be changed into a prime (240743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5999 + ... + 6038.

It is an arithmetic number, because the mean of its divisors is an integer number (42133).

2²⁴⁰⁷⁴⁰ is an apocalyptic number.

240740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240740 is an abundant number, since it is smaller than the sum of its proper divisors (264856).

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

240740 is a wasteful number, since it uses less digits than its factorization.

240740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12046 (or 12044 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 17.

The square root of 240740 is about 490.6526266107. The cubic root of 240740 is about 62.2084554766.

Adding to 240740 its reverse (47042), we get a palindrome (287782).

The spelling of 240740 in words is "two hundred forty thousand, seven hundred forty", and thus it is an iban number.