40455442541 has 4 divisors (see below), whose sum is σ = 40826593500. Its totient is φ = 40084291584.

The previous prime is 40455442507. The next prime is 40455442571. The reversal of 40455442541 is 14524455404.

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

It can be written as a sum of positive squares in 2 ways, for example, as 20700015625 + 19755426916 = 143875^2 + 140554^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40455442541 is a prime.

It is a super-3 number, since 3×40455442541³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40455442495 and 40455442504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40455442501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185575316 + ... + 185575533.

It is an arithmetic number, because the mean of its divisors is an integer number (10206648375).

Almost surely, 2^40455442541 is an apocalyptic number.

It is an amenable number.

40455442541 is a deficient number, since it is larger than the sum of its proper divisors (371150959).

40455442541 is a wasteful number, since it uses less digits than its factorization.

40455442541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371150958.

The product of its (nonzero) digits is 256000, while the sum is 38.

Adding to 40455442541 its reverse (14524455404), we get a palindrome (54979897945).

The spelling of 40455442541 in words is "forty billion, four hundred fifty-five million, four hundred forty-two thousand, five hundred forty-one".