40243000434442 has 32 divisors (see below), whose sum is σ = 67505722517520. Its totient is φ = 17872447150080.

The previous prime is 40243000434421. The next prime is 40243000434517. The reversal of 40243000434442 is 24443400034204.

It can be written as a sum of positive squares in 8 ways, for example, as 17755023296241 + 22487977138201 = 4213671^2 + 4742149^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40243000434398 and 40243000434407.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258493467 + ... + 258649102.

Almost surely, 2^{40243000434442} is an apocalyptic number.

40243000434442 is a deficient number, since it is larger than the sum of its proper divisors (27262722083078).

40243000434442 is a wasteful number, since it uses less digits than its factorization.

40243000434442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517142698.

The product of its (nonzero) digits is 147456, while the sum is 34.

Adding to 40243000434442 its reverse (24443400034204), we get a palindrome (64686400468646).

The spelling of 40243000434442 in words is "forty trillion, two hundred forty-three billion, four hundred thirty-four thousand, four hundred forty-two".