44744213 has 4 divisors (see below), whose sum is σ = 44813388. Its totient is φ = 44675040.

The previous prime is 44744207. The next prime is 44744237. The reversal of 44744213 is 31244744.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30052324 + 14691889 = 5482^2 + 3833^2 .

It is a cyclic number.

It is not a de Polignac number, because 44744213 - 2⁶ = 44744149 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 (44744113) 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, 33608 + ... + 34913.

It is an arithmetic number, because the mean of its divisors is an integer number (11203347).

Almost surely, 2^44744213 is an apocalyptic number.

It is an amenable number.

44744213 is a deficient number, since it is larger than the sum of its proper divisors (69175).

44744213 is an equidigital number, since it uses as much as digits as its factorization.

44744213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69174.

The product of its digits is 10752, while the sum is 29.

The square root of 44744213 is about 6689.1115254569. Note that the first 3 decimals coincide. The cubic root of 44744213 is about 355.0141183303.

Adding to 44744213 its reverse (31244744), we get a palindrome (75988957).

The spelling of 44744213 in words is "forty-four million, seven hundred forty-four thousand, two hundred thirteen".