40244130329 has 8 divisors (see below), whose sum is σ = 43354833480. Its totient is φ = 37135570176.

The previous prime is 40244130319. The next prime is 40244130391. The reversal of 40244130329 is 92303144204.

It can be written as a sum of positive squares in 4 ways, for example, as 704796304 + 39539334025 = 26548^2 + 198845^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40244130329 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40244130295 and 40244130304.

It is not an unprimeable number, because it can be changed into a prime (40244130319) 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, 496634 + ... + 571955.

It is an arithmetic number, because the mean of its divisors is an integer number (5419354185).

Almost surely, 2^40244130329 is an apocalyptic number.

It is an amenable number.

40244130329 is a deficient number, since it is larger than the sum of its proper divisors (3110703151).

40244130329 is a wasteful number, since it uses less digits than its factorization.

40244130329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071499.

The product of its (nonzero) digits is 20736, while the sum is 32.

The spelling of 40244130329 in words is "forty billion, two hundred forty-four million, one hundred thirty thousand, three hundred twenty-nine".