4022323021 has 8 divisors (see below), whose sum is σ = 4138316280. Its totient is φ = 3906713088.

The previous prime is 4022323003. The next prime is 4022323031. The reversal of 4022323021 is 1203232204.

It can be written as a sum of positive squares in 4 ways, for example, as 1902180996 + 2120142025 = 43614^2 + 46045^2 .

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 4022323021 - 2⁵ = 4022322989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4022323021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4022323031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74476 + ... + 116581.

It is an arithmetic number, because the mean of its divisors is an integer number (517289535).

Almost surely, 2^4022323021 is an apocalyptic number.

It is an amenable number.

4022323021 is a deficient number, since it is larger than the sum of its proper divisors (115993259).

4022323021 is a wasteful number, since it uses less digits than its factorization.

4022323021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191663.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 4022323021 is about 63421.7866430772. The cubic root of 4022323021 is about 1590.3485412620.

Adding to 4022323021 its reverse (1203232204), we get a palindrome (5225555225).

The spelling of 4022323021 in words is "four billion, twenty-two million, three hundred twenty-three thousand, twenty-one".