240040013240 has 32 divisors (see below), whose sum is σ = 541826681760. Its totient is φ = 95707267200.

The previous prime is 240040013149. The next prime is 240040013251. The reversal of 240040013240 is 42310040042.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 9635471 + ... + 9660350.

It is an arithmetic number, because the mean of its divisors is an integer number (16932083805).

Almost surely, 2^240040013240 is an apocalyptic number.

240040013240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240040013240 is an abundant number, since it is smaller than the sum of its proper divisors (301786668520).

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

240040013240 is a wasteful number, since it uses less digits than its factorization.

240040013240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19296143 (or 19296139 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 240040013240 its reverse (42310040042), we get a palindrome (282350053282).

The spelling of 240040013240 in words is "two hundred forty billion, forty million, thirteen thousand, two hundred forty".