4394400001 has 2 divisors, whose sum is σ = 4394400002. Its totient is φ = 4394400000.

The previous prime is 4394399969. The next prime is 4394400041. The reversal of 4394400001 is 1000044934.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4306509376 + 87890625 = 65624^2 + 9375^2 .

It is a cyclic number.

It is not a de Polignac number, because 4394400001 - 2⁵ = 4394399969 is a prime.

It is not a weakly prime, because it can be changed into another prime (4394400041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2197200000 + 2197200001.

It is an arithmetic number, because the mean of its divisors is an integer number (2197200001).

Almost surely, 2^4394400001 is an apocalyptic number.

It is an amenable number.

4394400001 is a deficient number, since it is larger than the sum of its proper divisors (1).

4394400001 is an equidigital number, since it uses as much as digits as its factorization.

4394400001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 4394400001 is about 66290.2707868960. The cubic root of 4394400001 is about 1637.9470645071.

Adding to 4394400001 its reverse (1000044934), we get a palindrome (5394444935).

The spelling of 4394400001 in words is "four billion, three hundred ninety-four million, four hundred thousand, one".