4365332021 has 2 divisors, whose sum is σ = 4365332022. Its totient is φ = 4365332020.

The previous prime is 4365332017. The next prime is 4365332047. The reversal of 4365332021 is 1202335634.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2979631396 + 1385700625 = 54586^2 + 37225^2 .

It is a cyclic number.

It is not a de Polignac number, because 4365332021 - 2² = 4365332017 is a prime.

It is a super-2 number, since 2×4365332021² = 38112247307135888882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4365331021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2182666010 + 2182666011.

It is an arithmetic number, because the mean of its divisors is an integer number (2182666011).

Almost surely, 2^4365332021 is an apocalyptic number.

It is an amenable number.

4365332021 is a deficient number, since it is larger than the sum of its proper divisors (1).

4365332021 is an equidigital number, since it uses as much as digits as its factorization.

4365332021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 4365332021 is about 66070.6593050198. The cubic root of 4365332021 is about 1634.3275198956.

Adding to 4365332021 its reverse (1202335634), we get a palindrome (5567667655).

The spelling of 4365332021 in words is "four billion, three hundred sixty-five million, three hundred thirty-two thousand, twenty-one".