44321813 has 8 divisors (see below), whose sum is σ = 46716000. Its totient is φ = 41933808.

The previous prime is 44321801. The next prime is 44321843. The reversal of 44321813 is 31812344.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 44321813 - 2¹⁰ = 44320789 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 (44321843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25238 + ... + 26936.

It is an arithmetic number, because the mean of its divisors is an integer number (5839500).

Almost surely, 2^44321813 is an apocalyptic number.

It is an amenable number.

44321813 is a deficient number, since it is larger than the sum of its proper divisors (2394187).

44321813 is a wasteful number, since it uses less digits than its factorization.

44321813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3091.

The product of its digits is 2304, while the sum is 26.

The square root of 44321813 is about 6657.4629552105. The cubic root of 44321813 is about 353.8934345732.

The spelling of 44321813 in words is "forty-four million, three hundred twenty-one thousand, eight hundred thirteen".