400044002041 has 2 divisors, whose sum is σ = 400044002042. Its totient is φ = 400044002040.

The previous prime is 400044002027. The next prime is 400044002081. The reversal of 400044002041 is 140200440004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 240060801600 + 159983200441 = 489960^2 + 399979^2 .

It is a cyclic number.

It is not a de Polignac number, because 400044002041 - 2³⁵ = 365684263673 is a prime.

It is a super-2 number, since 2×400044002041² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (400044002081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200022001020 + 200022001021.

It is an arithmetic number, because the mean of its divisors is an integer number (200022001021).

Almost surely, 2^400044002041 is an apocalyptic number.

It is an amenable number.

400044002041 is a deficient number, since it is larger than the sum of its proper divisors (1).

400044002041 is an equidigital number, since it uses as much as digits as its factorization.

400044002041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 400044002041 its reverse (140200440004), we get a palindrome (540244442045).

The spelling of 400044002041 in words is "four hundred billion, forty-four million, two thousand, forty-one".