40000004461 has 2 divisors, whose sum is σ = 40000004462. Its totient is φ = 40000004460.

The previous prime is 40000004411. The next prime is 40000004477. The reversal of 40000004461 is 16440000004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39087662436 + 912342025 = 197706^2 + 30205^2 .

It is a cyclic number.

It is not a de Polignac number, because 40000004461 - 2¹⁹ = 39999480173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40000004411) 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 as a sum of consecutive naturals, namely, 20000002230 + 20000002231.

It is an arithmetic number, because the mean of its divisors is an integer number (20000002231).

Almost surely, 2^40000004461 is an apocalyptic number.

It is an amenable number.

40000004461 is a deficient number, since it is larger than the sum of its proper divisors (1).

40000004461 is an equidigital number, since it uses as much as digits as its factorization.

40000004461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 40000004461 its reverse (16440000004), we get a palindrome (56440004465).

The spelling of 40000004461 in words is "forty billion, four thousand, four hundred sixty-one".