40224200440409 has 2 divisors, whose sum is σ = 40224200440410. Its totient is φ = 40224200440408.

The previous prime is 40224200440343. The next prime is 40224200440433. The reversal of 40224200440409 is 90404400242204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28174832152009 + 12049368288400 = 5307997^2 + 3471220^2 .

It is a cyclic number.

It is not a de Polignac number, because 40224200440409 - 2⁸ = 40224200440153 is a prime.

It is not a weakly prime, because it can be changed into another prime (40224200440439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20112100220204 + 20112100220205.

It is an arithmetic number, because the mean of its divisors is an integer number (20112100220205).

Almost surely, 2^{40224200440409} is an apocalyptic number.

It is an amenable number.

40224200440409 is a deficient number, since it is larger than the sum of its proper divisors (1).

40224200440409 is an equidigital number, since it uses as much as digits as its factorization.

40224200440409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 73728, while the sum is 35.

The spelling of 40224200440409 in words is "forty trillion, two hundred twenty-four billion, two hundred million, four hundred forty thousand, four hundred nine".