44400213213 has 16 divisors (see below), whose sum is σ = 62331641280. Its totient is φ = 28035241344.

The previous prime is 44400213133. The next prime is 44400213217. The reversal of 44400213213 is 31231200444.

It is not a de Polignac number, because 44400213213 - 2¹⁰ = 44400212189 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44400213217) 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, 138145 + ... + 328457.

It is an arithmetic number, because the mean of its divisors is an integer number (3895727580).

Almost surely, 2^44400213213 is an apocalyptic number.

It is an amenable number.

44400213213 is a deficient number, since it is larger than the sum of its proper divisors (17931428067).

44400213213 is a wasteful number, since it uses less digits than its factorization.

44400213213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194428.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 44400213213 its reverse (31231200444), we get a palindrome (75631413657).

The spelling of 44400213213 in words is "forty-four billion, four hundred million, two hundred thirteen thousand, two hundred thirteen".