443400229 has 2 divisors, whose sum is σ = 443400230. Its totient is φ = 443400228.

The previous prime is 443400179. The next prime is 443400247. The reversal of 443400229 is 922004344.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 330403329 + 112996900 = 18177^2 + 10630^2 .

It is a cyclic number.

It is not a de Polignac number, because 443400229 - 2¹⁵ = 443367461 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 443400197 and 443400206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (443400299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221700114 + 221700115.

It is an arithmetic number, because the mean of its divisors is an integer number (221700115).

Almost surely, 2^443400229 is an apocalyptic number.

It is an amenable number.

443400229 is a deficient number, since it is larger than the sum of its proper divisors (1).

443400229 is an equidigital number, since it uses as much as digits as its factorization.

443400229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 443400229 is about 21057.0707601983. The cubic root of 443400229 is about 762.5446955436.

The spelling of 443400229 in words is "four hundred forty-three million, four hundred thousand, two hundred twenty-nine".