240402334240 has 96 divisors (see below), whose sum is σ = 572204533824. Its totient is φ = 95443307520.

The previous prime is 240402334213. The next prime is 240402334297. The reversal of 240402334240 is 42433204042.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 240402334199 and 240402334208.

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, 12011922 + ... + 12031918.

It is an arithmetic number, because the mean of its divisors is an integer number (5960463894).

Almost surely, 2^240402334240 is an apocalyptic number.

240402334240 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 240402334240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286102266912).

240402334240 is an abundant number, since it is smaller than the sum of its proper divisors (331802199584).

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

240402334240 is a wasteful number, since it uses less digits than its factorization.

240402334240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20570 (or 20562 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 240402334240 its reverse (42433204042), we get a palindrome (282835538282).

The spelling of 240402334240 in words is "two hundred forty billion, four hundred two million, three hundred thirty-four thousand, two hundred forty".