40021044321 has 8 divisors (see below), whose sum is σ = 53480239200. Its totient is φ = 26621272832.

The previous prime is 40021044281. The next prime is 40021044347. The reversal of 40021044321 is 12344012004.

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

It is a cyclic number.

It is not a de Polignac number, because 40021044321 - 2¹¹ = 40021042273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40021044521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14854275 + ... + 14856968.

It is an arithmetic number, because the mean of its divisors is an integer number (6685029900).

Almost surely, 2^40021044321 is an apocalyptic number.

It is an amenable number.

40021044321 is a deficient number, since it is larger than the sum of its proper divisors (13459194879).

40021044321 is a wasteful number, since it uses less digits than its factorization.

40021044321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29711695.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 40021044321 its reverse (12344012004), we get a palindrome (52365056325).

The spelling of 40021044321 in words is "forty billion, twenty-one million, forty-four thousand, three hundred twenty-one".