44003313 has 6 divisors (see below), whose sum is σ = 63560354. Its totient is φ = 29335536.

The previous prime is 44003287. The next prime is 44003329. The reversal of 44003313 is 31330044.

It can be written as a sum of positive squares in only one way, i.e., 42810849 + 1192464 = 6543^2 + 1092^2 .

It is not a de Polignac number, because 44003313 - 2¹³ = 43995121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (44003383) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2444620 + ... + 2444637.

Almost surely, 2^44003313 is an apocalyptic number.

It is an amenable number.

44003313 is a deficient number, since it is larger than the sum of its proper divisors (19557041).

44003313 is a wasteful number, since it uses less digits than its factorization.

44003313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4889263 (or 4889260 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 44003313 is about 6633.4993027813. The cubic root of 44003313 is about 353.0436939496.

Adding to 44003313 its reverse (31330044), we get a palindrome (75333357).

The spelling of 44003313 in words is "forty-four million, three thousand, three hundred thirteen".