40238415740 has 12 divisors (see below), whose sum is σ = 84500673096. Its totient is φ = 16095366288.

The previous prime is 40238415739. The next prime is 40238415743. The reversal of 40238415740 is 4751483204.

It is a junction number, because it is equal to n+sod(n) for n = 40238415694 and 40238415703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40238415743) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1005960374 + ... + 1005960413.

It is an arithmetic number, because the mean of its divisors is an integer number (7041722758).

Almost surely, 2^40238415740 is an apocalyptic number.

It is an amenable number.

40238415740 is an abundant number, since it is smaller than the sum of its proper divisors (44262257356).

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

40238415740 is a wasteful number, since it uses less digits than its factorization.

40238415740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2011920796 (or 2011920794 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 38.

Adding to 40238415740 its reverse (4751483204), we get a palindrome (44989898944).

The spelling of 40238415740 in words is "forty billion, two hundred thirty-eight million, four hundred fifteen thousand, seven hundred forty".