40024004321 has 8 divisors (see below), whose sum is σ = 45801832704. Its totient is φ = 34261204320.

The previous prime is 40024004311. The next prime is 40024004353. The reversal of 40024004321 is 12340042004.

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

It is not a de Polignac number, because 40024004321 - 2¹⁰ = 40024003297 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 = 40024004293 and 40024004302.

It is not an unprimeable number, because it can be changed into a prime (40024004311) 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, 3751385 + ... + 3762038.

It is an arithmetic number, because the mean of its divisors is an integer number (5725229088).

Almost surely, 2^40024004321 is an apocalyptic number.

It is an amenable number.

40024004321 is a deficient number, since it is larger than the sum of its proper divisors (5777828383).

40024004321 is an equidigital number, since it uses as much as digits as its factorization.

40024004321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7514191.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 40024004321 its reverse (12340042004), we get a palindrome (52364046325).

The spelling of 40024004321 in words is "forty billion, twenty-four million, four thousand, three hundred twenty-one".