40444323130 has 16 divisors (see below), whose sum is σ = 72811686024. Its totient is φ = 16175083840.

The previous prime is 40444323109. The next prime is 40444323131. The reversal of 40444323130 is 3132344404.

It can be written as a sum of positive squares in 4 ways, for example, as 10429107129 + 30015216001 = 102123^2 + 173249^2 .

It is not an unprimeable number, because it can be changed into a prime (40444323131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265861 + ... + 389320.

Almost surely, 2^40444323130 is an apocalyptic number.

40444323130 is a deficient number, since it is larger than the sum of its proper divisors (32367362894).

40444323130 is a wasteful number, since it uses less digits than its factorization.

40444323130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661361.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 40444323130 its reverse (3132344404), we get a palindrome (43576667534).

The spelling of 40444323130 in words is "forty billion, four hundred forty-four million, three hundred twenty-three thousand, one hundred thirty".