40444343312 has 60 divisors (see below), whose sum is σ = 85554395820. Its totient is φ = 18497154816.

The previous prime is 40444343311. The next prime is 40444343377. The reversal of 40444343312 is 21334344404.

It can be written as a sum of positive squares in 2 ways, for example, as 26674728976 + 13769614336 = 163324^2 + 117344^2 .

It is not an unprimeable number, because it can be changed into a prime (40444343311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46778 + ... + 288230.

It is an arithmetic number, because the mean of its divisors is an integer number (1425906597).

Almost surely, 2^40444343312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40444343312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42777197910).

40444343312 is an abundant number, since it is smaller than the sum of its proper divisors (45110052508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40444343312 is a wasteful number, since it uses less digits than its factorization.

40444343312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241528 (or 241503 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 40444343312 its reverse (21334344404), we get a palindrome (61778687716).

The spelling of 40444343312 in words is "forty billion, four hundred forty-four million, three hundred forty-three thousand, three hundred twelve".