240213740 has 48 divisors (see below), whose sum is σ = 575219232. Its totient is φ = 83475456.

The previous prime is 240213739. The next prime is 240213749. The reversal of 240213740 is 47312042.

It is not an unprimeable number, because it can be changed into a prime (240213749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22754 + ... + 31593.

It is an arithmetic number, because the mean of its divisors is an integer number (11983734).

Almost surely, 2^240213740 is an apocalyptic number.

240213740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240213740 is an abundant number, since it is smaller than the sum of its proper divisors (335005492).

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

240213740 is a wasteful number, since it uses less digits than its factorization.

240213740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54386 (or 54384 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 240213740 is about 15498.8302784436. The cubic root of 240213740 is about 621.6309297508.

Adding to 240213740 its reverse (47312042), we get a palindrome (287525782).

The spelling of 240213740 in words is "two hundred forty million, two hundred thirteen thousand, seven hundred forty".