400004444233 has 2 divisors, whose sum is σ = 400004444234. Its totient is φ = 400004444232.

The previous prime is 400004444207. The next prime is 400004444249. The reversal of 400004444233 is 332444400004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 236009412864 + 163995031369 = 485808^2 + 404963^2 .

It is a cyclic number.

It is not a de Polignac number, because 400004444233 - 2²⁹ = 399467573321 is a prime.

It is not a weakly prime, because it can be changed into another prime (400004454233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200002222116 + 200002222117.

It is an arithmetic number, because the mean of its divisors is an integer number (200002222117).

Almost surely, 2^400004444233 is an apocalyptic number.

It is an amenable number.

400004444233 is a deficient number, since it is larger than the sum of its proper divisors (1).

400004444233 is an equidigital number, since it uses as much as digits as its factorization.

400004444233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 400004444233 its reverse (332444400004), we get a palindrome (732448844237).

The spelling of 400004444233 in words is "four hundred billion, four million, four hundred forty-four thousand, two hundred thirty-three".