40220013461 has 2 divisors, whose sum is σ = 40220013462. Its totient is φ = 40220013460.

The previous prime is 40220013403. The next prime is 40220013481. The reversal of 40220013461 is 16431002204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29594320900 + 10625692561 = 172030^2 + 103081^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40220013461 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40220013481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20110006730 + 20110006731.

It is an arithmetic number, because the mean of its divisors is an integer number (20110006731).

Almost surely, 2^40220013461 is an apocalyptic number.

It is an amenable number.

40220013461 is a deficient number, since it is larger than the sum of its proper divisors (1).

40220013461 is an equidigital number, since it uses as much as digits as its factorization.

40220013461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 40220013461 its reverse (16431002204), we get a palindrome (56651015665).

The spelling of 40220013461 in words is "forty billion, two hundred twenty million, thirteen thousand, four hundred sixty-one".