44218413 has 8 divisors (see below), whose sum is σ = 65508800. Its totient is φ = 29478924.

The previous prime is 44218409. The next prime is 44218451. The reversal of 44218413 is 31481244.

It is not a de Polignac number, because 44218413 - 2² = 44218409 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1637719 = 44218413 / (4 + 4 + 2 + 1 + 8 + 4 + 1 + 3).

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 (44218403) 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, 818833 + ... + 818886.

It is an arithmetic number, because the mean of its divisors is an integer number (8188600).

Almost surely, 2^44218413 is an apocalyptic number.

It is an amenable number.

44218413 is a deficient number, since it is larger than the sum of its proper divisors (21290387).

44218413 is a wasteful number, since it uses less digits than its factorization.

44218413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1637728 (or 1637722 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 44218413 is about 6649.6926996667. The cubic root of 44218413 is about 353.6180165818.

Adding to 44218413 its reverse (31481244), we get a palindrome (75699657).

The spelling of 44218413 in words is "forty-four million, two hundred eighteen thousand, four hundred thirteen".