452422021 has 2 divisors, whose sum is σ = 452422022. Its totient is φ = 452422020.

The previous prime is 452422007. The next prime is 452422031. The reversal of 452422021 is 120224254.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 246929796 + 205492225 = 15714^2 + 14335^2 .

It is a cyclic number.

It is not a de Polignac number, because 452422021 - 2¹⁵ = 452389253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 452421983 and 452422001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (452422031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226211010 + 226211011.

It is an arithmetic number, because the mean of its divisors is an integer number (226211011).

Almost surely, 2^452422021 is an apocalyptic number.

It is an amenable number.

452422021 is a deficient number, since it is larger than the sum of its proper divisors (1).

452422021 is an equidigital number, since it uses as much as digits as its factorization.

452422021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 452422021 is about 21270.2144088864. The cubic root of 452422021 is about 767.6818009840.

Adding to 452422021 its reverse (120224254), we get a palindrome (572646275).

The spelling of 452422021 in words is "four hundred fifty-two million, four hundred twenty-two thousand, twenty-one".