44144213 has 4 divisors (see below), whose sum is σ = 44892480. Its totient is φ = 43395948.

The previous prime is 44144207. The next prime is 44144227. The reversal of 44144213 is 31244144.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 44144213 - 2¹⁴ = 44127829 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44144263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 374045 + ... + 374162.

It is an arithmetic number, because the mean of its divisors is an integer number (11223120).

Almost surely, 2^44144213 is an apocalyptic number.

It is an amenable number.

44144213 is a deficient number, since it is larger than the sum of its proper divisors (748267).

44144213 is an equidigital number, since it uses as much as digits as its factorization.

44144213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748266.

The product of its digits is 1536, while the sum is 23.

The square root of 44144213 is about 6644.1111519902. Note that the first 4 decimals coincide. The cubic root of 44144213 is about 353.4201114929.

Adding to 44144213 its reverse (31244144), we get a palindrome (75388357).

The spelling of 44144213 in words is "forty-four million, one hundred forty-four thousand, two hundred thirteen".