40002320240 has 20 divisors (see below), whose sum is σ = 93005394744. Its totient is φ = 16000928064.

The previous prime is 40002320221. The next prime is 40002320257. The reversal of 40002320240 is 4202320004.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250014422 + ... + 250014581.

Almost surely, 2^40002320240 is an apocalyptic number.

40002320240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40002320240 is an abundant number, since it is smaller than the sum of its proper divisors (53003074504).

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

40002320240 is a wasteful number, since it uses less digits than its factorization.

40002320240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500029016 (or 500029010 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

Adding to 40002320240 its reverse (4202320004), we get a palindrome (44204640244).

The spelling of 40002320240 in words is "forty billion, two million, three hundred twenty thousand, two hundred forty".