44401213 has 2 divisors, whose sum is σ = 44401214. Its totient is φ = 44401212.

The previous prime is 44401211. The next prime is 44401219. The reversal of 44401213 is 31210444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26193924 + 18207289 = 5118^2 + 4267^2 .

It is a cyclic number.

It is not a de Polignac number, because 44401213 - 2¹ = 44401211 is a prime.

Together with 44401211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44401211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22200606 + 22200607.

It is an arithmetic number, because the mean of its divisors is an integer number (22200607).

Almost surely, 2^44401213 is an apocalyptic number.

It is an amenable number.

44401213 is a deficient number, since it is larger than the sum of its proper divisors (1).

44401213 is an equidigital number, since it uses as much as digits as its factorization.

44401213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 44401213 is about 6663.4235194831. The cubic root of 44401213 is about 354.1046351398.

Adding to 44401213 its reverse (31210444), we get a palindrome (75611657).

The spelling of 44401213 in words is "forty-four million, four hundred one thousand, two hundred thirteen".