44020331 has 4 divisors (see below), whose sum is σ = 44037600. Its totient is φ = 44003064.

The previous prime is 44020303. The next prime is 44020349. The reversal of 44020331 is 13302044.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 44020331 - 2²² = 39826027 is a prime.

It is a super-2 number, since 2×44020331² = 3875579082699122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44020381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3971 + ... + 10188.

It is an arithmetic number, because the mean of its divisors is an integer number (11009400).

Almost surely, 2^44020331 is an apocalyptic number.

44020331 is a deficient number, since it is larger than the sum of its proper divisors (17269).

44020331 is a wasteful number, since it uses less digits than its factorization.

44020331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17268.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 44020331 is about 6634.7819105077. The cubic root of 44020331 is about 353.0892005476.

Adding to 44020331 its reverse (13302044), we get a palindrome (57322375).

The spelling of 44020331 in words is "forty-four million, twenty thousand, three hundred thirty-one".