40532440405442 has 4 divisors (see below), whose sum is σ = 60798660608166. Its totient is φ = 20266220202720.

The previous prime is 40532440405439. The next prime is 40532440405447. The reversal of 40532440405442 is 24450404423504.

40532440405442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 40457982914281 + 74457491161 = 6360659^2 + 272869^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40532440405442.

It is not an unprimeable number, because it can be changed into a prime (40532440405447) 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 as a sum of consecutive naturals, namely, 10133110101359 + ... + 10133110101362.

Almost surely, 2^{40532440405442} is an apocalyptic number.

40532440405442 is a deficient number, since it is larger than the sum of its proper divisors (20266220202724).

40532440405442 is a wasteful number, since it uses less digits than its factorization.

40532440405442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20266220202723.

The product of its (nonzero) digits is 1228800, while the sum is 41.

Adding to 40532440405442 its reverse (24450404423504), we get a palindrome (64982844828946).

The spelling of 40532440405442 in words is "forty trillion, five hundred thirty-two billion, four hundred forty million, four hundred five thousand, four hundred forty-two".