40042644260620 has 24 divisors (see below), whose sum is σ = 84089943285264. Its totient is φ = 16016983354176.

The previous prime is 40042644260599. The next prime is 40042644260621. The reversal of 40042644260620 is 2606244624004.

It is not an unprimeable number, because it can be changed into a prime (40042644260621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123207 + ... + 8949886.

It is an arithmetic number, because the mean of its divisors is an integer number (3503747636886).

Almost surely, 2^{40042644260620} is an apocalyptic number.

It is an amenable number.

40042644260620 is an abundant number, since it is smaller than the sum of its proper divisors (44047299024644).

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

40042644260620 is a wasteful number, since it uses less digits than its factorization.

40042644260620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9293769 (or 9293767 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 40.

Adding to 40042644260620 its reverse (2606244624004), we get a palindrome (42648888884624).

The spelling of 40042644260620 in words is "forty trillion, forty-two billion, six hundred forty-four million, two hundred sixty thousand, six hundred twenty".