240340130256 has 40 divisors (see below), whose sum is σ = 621168930144. Its totient is φ = 80075923840.

The previous prime is 240340130249. The next prime is 240340130287. The reversal of 240340130256 is 652031043042.

It is a super-2 number, since 2×240340130256² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1066566 + ... + 1272101.

Almost surely, 2^240340130256 is an apocalyptic number.

It is an amenable number.

240340130256 is an abundant number, since it is smaller than the sum of its proper divisors (380828799888).

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

240340130256 is a wasteful number, since it uses less digits than its factorization.

240340130256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2340819 (or 2340813 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 240340130256 its reverse (652031043042), we get a palindrome (892371173298).

The spelling of 240340130256 in words is "two hundred forty billion, three hundred forty million, one hundred thirty thousand, two hundred fifty-six".