40042242440 has 32 divisors (see below), whose sum is σ = 93001340160. Its totient is φ = 15500222400.

The previous prime is 40042242439. The next prime is 40042242467. The reversal of 40042242440 is 4424224004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16144826 + ... + 16147305.

It is an arithmetic number, because the mean of its divisors is an integer number (2906291880).

Almost surely, 2^40042242440 is an apocalyptic number.

40042242440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40042242440 is an abundant number, since it is smaller than the sum of its proper divisors (52959097720).

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

40042242440 is a wasteful number, since it uses less digits than its factorization.

40042242440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32292173 (or 32292169 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 40042242440 its reverse (4424224004), we get a palindrome (44466466444).

The spelling of 40042242440 in words is "forty billion, forty-two million, two hundred forty-two thousand, four hundred forty".