40242042242440 has 32 divisors (see below), whose sum is σ = 90549266204160. Its totient is φ = 16095986468800.

The previous prime is 40242042242419. The next prime is 40242042242593. The reversal of 40242042242440 is 4424224024204.

It is a junction number, because it is equal to n+sod(n) for n = 40242042242396 and 40242042242405.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25165546 + ... + 26716825.

It is an arithmetic number, because the mean of its divisors is an integer number (2829664568880).

Almost surely, 2^{40242042242440} is an apocalyptic number.

40242042242440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40242042242440 is an abundant number, since it is smaller than the sum of its proper divisors (50307223961720).

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

40242042242440 is a wasteful number, since it uses less digits than its factorization.

40242042242440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51901773 (or 51901769 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 34.

Adding to 40242042242440 its reverse (4424224024204), we get a palindrome (44666266266644).

The spelling of 40242042242440 in words is "forty trillion, two hundred forty-two billion, forty-two million, two hundred forty-two thousand, four hundred forty".