44242321 has 4 divisors (see below), whose sum is σ = 45321444. Its totient is φ = 43163200.

The previous prime is 44242283. The next prime is 44242349. The reversal of 44242321 is 12324244.

It is a happy number.

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 8673025 + 35569296 = 2945^2 + 5964^2 .

It is a cyclic number.

It is not a de Polignac number, because 44242321 - 2⁷ = 44242193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44242292 and 44242301.

It is not an unprimeable number, because it can be changed into a prime (44242351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 539500 + ... + 539581.

It is an arithmetic number, because the mean of its divisors is an integer number (11330361).

Almost surely, 2^44242321 is an apocalyptic number.

44242321 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

44242321 is a deficient number, since it is larger than the sum of its proper divisors (1079123).

44242321 is a wasteful number, since it uses less digits than its factorization.

44242321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079122.

The product of its digits is 1536, while the sum is 22.

The square root of 44242321 is about 6651.4901337971. The cubic root of 44242321 is about 353.6817364648.

Adding to 44242321 its reverse (12324244), we get a palindrome (56566565).

The spelling of 44242321 in words is "forty-four million, two hundred forty-two thousand, three hundred twenty-one".