44221331 has 16 divisors (see below), whose sum is σ = 55385088. Its totient is φ = 34300800.

The previous prime is 44221319. The next prime is 44221337. The reversal of 44221331 is 13312244.

44221331 = T₁₀₃₃ + T₁₀₃₄ + ... + T₁₁₀₉.

It is a cyclic number.

It is not a de Polignac number, because 44221331 - 2¹⁰ = 44220307 is a prime.

It is a super-2 number, since 2×44221331² = 3911052230823122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (44221337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17366 + ... + 19748.

It is an arithmetic number, because the mean of its divisors is an integer number (3461568).

Almost surely, 2^44221331 is an apocalyptic number.

44221331 is a deficient number, since it is larger than the sum of its proper divisors (11163757).

44221331 is a wasteful number, since it uses less digits than its factorization.

44221331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2642.

The product of its digits is 576, while the sum is 20.

The square root of 44221331 is about 6649.9121046823. The cubic root of 44221331 is about 353.6257949001.

Adding to 44221331 its reverse (13312244), we get a palindrome (57533575).

It can be divided in two parts, 442213 and 31, that added together give a palindrome (442244).

The spelling of 44221331 in words is "forty-four million, two hundred twenty-one thousand, three hundred thirty-one".