244203400213 has 16 divisors (see below), whose sum is σ = 252892846080. Its totient is φ = 235655481600.

The previous prime is 244203400057. The next prime is 244203400261. The reversal of 244203400213 is 312004302442.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 244203400213 - 2⁹ = 244203399701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244203400313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1652673 + ... + 1794361.

It is an arithmetic number, because the mean of its divisors is an integer number (15805802880).

Almost surely, 2^244203400213 is an apocalyptic number.

It is an amenable number.

244203400213 is a deficient number, since it is larger than the sum of its proper divisors (8689445867).

244203400213 is a wasteful number, since it uses less digits than its factorization.

244203400213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142188.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 244203400213 its reverse (312004302442), we get a palindrome (556207702655).

The spelling of 244203400213 in words is "two hundred forty-four billion, two hundred three million, four hundred thousand, two hundred thirteen".