44406331 has 4 divisors (see below), whose sum is σ = 44570464. Its totient is φ = 44242200.

The previous prime is 44406319. The next prime is 44406343. The reversal of 44406331 is 13360444.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (44406319) and next prime (44406343).

It is a cyclic number.

It is not a de Polignac number, because 44406331 - 2⁷ = 44406203 is a prime.

It is a super-2 number, since 2×44406331² = 3943844465763122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44406296 and 44406305.

It is not an unprimeable number, because it can be changed into a prime (44406301) 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, 81660 + ... + 82201.

It is an arithmetic number, because the mean of its divisors is an integer number (11142616).

Almost surely, 2^44406331 is an apocalyptic number.

44406331 is a deficient number, since it is larger than the sum of its proper divisors (164133).

44406331 is a wasteful number, since it uses less digits than its factorization.

44406331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164132.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 44406331 is about 6663.8075452402. The cubic root of 44406331 is about 354.1182401577.

Adding to 44406331 its reverse (13360444), we get a palindrome (57766775).

The spelling of 44406331 in words is "forty-four million, four hundred six thousand, three hundred thirty-one".