44332221 has 8 divisors (see below), whose sum is σ = 60225120. Its totient is φ = 28997072.

The previous prime is 44332219. The next prime is 44332237. The reversal of 44332221 is 12223344.

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 44332221 - 2¹ = 44332219 is a prime.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44332261) 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, 139251 + ... + 139568.

It is an arithmetic number, because the mean of its divisors is an integer number (7528140).

Almost surely, 2^44332221 is an apocalyptic number.

It is an amenable number.

44332221 is a deficient number, since it is larger than the sum of its proper divisors (15892899).

44332221 is a wasteful number, since it uses less digits than its factorization.

44332221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278875.

The product of its digits is 1152, while the sum is 21.

The square root of 44332221 is about 6658.2445884783. The cubic root of 44332221 is about 353.9211337605.

Adding to 44332221 its reverse (12223344), we get a palindrome (56555565).

The spelling of 44332221 in words is "forty-four million, three hundred thirty-two thousand, two hundred twenty-one".