240340240 has 80 divisors (see below), whose sum is σ = 642780288. Its totient is φ = 81865728.

The previous prime is 240340231. The next prime is 240340273. The reversal of 240340240 is 42043042.

It is a tau number, because it is divible by the number of its divisors (80).

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, 89964 + ... + 92596.

Almost surely, 2^240340240 is an apocalyptic number.

240340240 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 240340240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321390144).

240340240 is an abundant number, since it is smaller than the sum of its proper divisors (402440048).

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

240340240 is a wasteful number, since it uses less digits than its factorization.

240340240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2816 (or 2810 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 240340240 is about 15502.9106944470. The cubic root of 240340240 is about 621.7400305221.

Adding to 240340240 its reverse (42043042), we get a palindrome (282383282).

The spelling of 240340240 in words is "two hundred forty million, three hundred forty thousand, two hundred forty".