44312331 has 16 divisors (see below), whose sum is σ = 67655168. Its totient is φ = 25272000.

The previous prime is 44312327. The next prime is 44312407. The reversal of 44312331 is 13321344.

It is not a de Polignac number, because 44312331 - 2² = 44312327 is a prime.

It is a super-2 number, since 2×44312331² = 3927165357307122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 44312298 and 44312307.

It is not an unprimeable number, because it can be changed into a prime (44312131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10866 + ... + 14376.

It is an arithmetic number, because the mean of its divisors is an integer number (4228448).

Almost surely, 2^44312331 is an apocalyptic number.

44312331 is a deficient number, since it is larger than the sum of its proper divisors (23342837).

44312331 is a wasteful number, since it uses less digits than its factorization.

44312331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4122.

The product of its digits is 864, while the sum is 21.

The square root of 44312331 is about 6656.7507839786. The cubic root of 44312331 is about 353.8681960083.

Adding to 44312331 its reverse (13321344), we get a palindrome (57633675).

The spelling of 44312331 in words is "forty-four million, three hundred twelve thousand, three hundred thirty-one".