40244020004321 has 32 divisors (see below), whose sum is σ = 48129426892800. Its totient is φ = 32927987828736.

The previous prime is 40244020004311. The next prime is 40244020004339. The reversal of 40244020004321 is 12340002044204.

It is a happy number.

It is not a de Polignac number, because 40244020004321 - 2³⁸ = 39969142097377 is a prime.

It is a super-2 number, since 2×40244020004321² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40244020004311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 478330160 + ... + 478414286.

It is an arithmetic number, because the mean of its divisors is an integer number (1504044590400).

Almost surely, 2^{40244020004321} is an apocalyptic number.

It is an amenable number.

40244020004321 is a deficient number, since it is larger than the sum of its proper divisors (7885406888479).

40244020004321 is a wasteful number, since it uses less digits than its factorization.

40244020004321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119073.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 40244020004321 its reverse (12340002044204), we get a palindrome (52584022048525).

The spelling of 40244020004321 in words is "forty trillion, two hundred forty-four billion, twenty million, four thousand, three hundred twenty-one".