40243022021 has 8 divisors (see below), whose sum is σ = 41418185760. Its totient is φ = 39084294352.

The previous prime is 40243022009. The next prime is 40243022023. The reversal of 40243022021 is 12022034204.

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 40243022021 - 2¹⁰ = 40243020997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40243021984 and 40243022002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40243022023) 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, 4104050 + ... + 4113843.

It is an arithmetic number, because the mean of its divisors is an integer number (5177273220).

Almost surely, 2^40243022021 is an apocalyptic number.

It is an amenable number.

40243022021 is a deficient number, since it is larger than the sum of its proper divisors (1175163739).

40243022021 is an equidigital number, since it uses as much as digits as its factorization.

40243022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8218035.

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

Adding to 40243022021 its reverse (12022034204), we get a palindrome (52265056225).

The spelling of 40243022021 in words is "forty billion, two hundred forty-three million, twenty-two thousand, twenty-one".