40002004242420 has 48 divisors (see below), whose sum is σ = 122187940233408. Its totient is φ = 9697455573760.

The previous prime is 40002004242397. The next prime is 40002004242433. The reversal of 40002004242420 is 2424240020004.

It is a congruent number.

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, 30304548009 + ... + 30304549328.

It is an arithmetic number, because the mean of its divisors is an integer number (2545582088196).

Almost surely, 2^{40002004242420} is an apocalyptic number.

It is an amenable number.

40002004242420 is an abundant number, since it is smaller than the sum of its proper divisors (82185935990988).

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

40002004242420 is a wasteful number, since it uses less digits than its factorization.

40002004242420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60609097360 (or 60609097358 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 40002004242420 its reverse (2424240020004), we get a palindrome (42426244262424).

The spelling of 40002004242420 in words is "forty trillion, two billion, four million, two hundred forty-two thousand, four hundred twenty".