240340230143240 has 32 divisors (see below), whose sum is σ = 549630526316760. Its totient is φ = 94560090547200.

The previous prime is 240340230143197. The next prime is 240340230143249. The reversal of 240340230143240 is 42341032043042.

It can be written as a sum of positive squares in 4 ways, for example, as 170633661033124 + 69706569110116 = 13062682^2 + 8349046^2 .

It is a super-2 number, since 2×240340230143240² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 240340230143197 and 240340230143206.

It is not an unprimeable number, because it can be changed into a prime (240340230143249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49250044721 + ... + 49250049600.

Almost surely, 2^{240340230143240} is an apocalyptic number.

240340230143240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240340230143240 is an abundant number, since it is smaller than the sum of its proper divisors (309290296173520).

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

240340230143240 is a wasteful number, since it uses less digits than its factorization.

240340230143240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98500094393 (or 98500094389 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 240340230143240 its reverse (42341032043042), we get a palindrome (282681262186282).

The spelling of 240340230143240 in words is "two hundred forty trillion, three hundred forty billion, two hundred thirty million, one hundred forty-three thousand, two hundred forty".