44401331 has 16 divisors (see below), whose sum is σ = 52270848. Its totient is φ = 37324800.

The previous prime is 44401321. The next prime is 44401361. The reversal of 44401331 is 13310444.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 44401331 - 2¹⁴ = 44384947 is a prime.

It is a super-2 number, since 2×44401331² = 3942956389143122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44401321) 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, 3611 + ... + 10091.

It is an arithmetic number, because the mean of its divisors is an integer number (3266928).

Almost surely, 2^44401331 is an apocalyptic number.

44401331 is a deficient number, since it is larger than the sum of its proper divisors (7869517).

44401331 is a wasteful number, since it uses less digits than its factorization.

44401331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6542.

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

The square root of 44401331 is about 6663.4323737845. The cubic root of 44401331 is about 354.1049488272.

Adding to 44401331 its reverse (13310444), we get a palindrome (57711775).

The spelling of 44401331 in words is "forty-four million, four hundred one thousand, three hundred thirty-one".