4432322021 has 8 divisors (see below), whose sum is σ = 4441493784. Its totient is φ = 4423161600.

The previous prime is 4432322003. The next prime is 4432322029. The reversal of 4432322021 is 1202232344.

It can be written as a sum of positive squares in 4 ways, for example, as 84897796 + 4347424225 = 9214^2 + 65935^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4432322021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4432322029) 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, 1341071 + ... + 1344371.

It is an arithmetic number, because the mean of its divisors is an integer number (555186723).

Almost surely, 2^4432322021 is an apocalyptic number.

It is an amenable number.

4432322021 is a deficient number, since it is larger than the sum of its proper divisors (9171763).

4432322021 is a wasteful number, since it uses less digits than its factorization.

4432322021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5671.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 4432322021 is about 66575.6864102804. The cubic root of 4432322021 is about 1642.6451984043.

Adding to 4432322021 its reverse (1202232344), we get a palindrome (5634554365).

The spelling of 4432322021 in words is "four billion, four hundred thirty-two million, three hundred twenty-two thousand, twenty-one".