436400401 has 2 divisors, whose sum is σ = 436400402. Its totient is φ = 436400400.

The previous prime is 436400339. The next prime is 436400407. The reversal of 436400401 is 104004634.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 408848400 + 27552001 = 20220^2 + 5249^2 .

It is a cyclic number.

It is not a de Polignac number, because 436400401 - 2⁹ = 436399889 is a prime.

It is not a weakly prime, because it can be changed into another prime (436400407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 218200200 + 218200201.

It is an arithmetic number, because the mean of its divisors is an integer number (218200201).

Almost surely, 2^436400401 is an apocalyptic number.

It is an amenable number.

436400401 is a deficient number, since it is larger than the sum of its proper divisors (1).

436400401 is an equidigital number, since it uses as much as digits as its factorization.

436400401 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 22.

The square root of 436400401 is about 20890.1986826358. The cubic root of 436400401 is about 758.5107036328.

The spelling of 436400401 in words is "four hundred thirty-six million, four hundred thousand, four hundred one".