40243142124140 has 24 divisors (see below), whose sum is σ = 86105138056560. Its totient is φ = 15793535021888.

The previous prime is 40243142124127. The next prime is 40243142124151. The reversal of 40243142124140 is 4142124134204.

It is a super-2 number, since 2×40243142124140² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40243142124097 and 40243142124106.

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, 18982613150 + ... + 18982615269.

It is an arithmetic number, because the mean of its divisors is an integer number (3587714085690).

Almost surely, 2^{40243142124140} is an apocalyptic number.

It is an amenable number.

40243142124140 is an abundant number, since it is smaller than the sum of its proper divisors (45861995932420).

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

40243142124140 is a wasteful number, since it uses less digits than its factorization.

40243142124140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37965228481 (or 37965228479 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 40243142124140 its reverse (4142124134204), we get a palindrome (44385266258344).

The spelling of 40243142124140 in words is "forty trillion, two hundred forty-three billion, one hundred forty-two million, one hundred twenty-four thousand, one hundred forty".