40242143220 has 48 divisors (see below), whose sum is σ = 112692625920. Its totient is φ = 10729845376.

The previous prime is 40242143197. The next prime is 40242143237. The reversal of 40242143220 is 2234124204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 473326 + ... + 551834.

It is an arithmetic number, because the mean of its divisors is an integer number (2347763040).

Almost surely, 2^40242143220 is an apocalyptic number.

It is an amenable number.

40242143220 is an abundant number, since it is smaller than the sum of its proper divisors (72450482700).

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

40242143220 is a wasteful number, since it uses less digits than its factorization.

40242143220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87064 (or 87062 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 40242143220 its reverse (2234124204), we get a palindrome (42476267424).

The spelling of 40242143220 in words is "forty billion, two hundred forty-two million, one hundred forty-three thousand, two hundred twenty".