450369089 has 2 divisors, whose sum is σ = 450369090. Its totient is φ = 450369088.

The previous prime is 450369077. The next prime is 450369091. The reversal of 450369089 is 980963054.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 276656689 + 173712400 = 16633^2 + 13180^2 .

It is a cyclic number.

It is not a de Polignac number, because 450369089 - 2²⁰ = 449320513 is a prime.

Together with 450369091, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (450369019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225184544 + 225184545.

It is an arithmetic number, because the mean of its divisors is an integer number (225184545).

Almost surely, 2^450369089 is an apocalyptic number.

It is an amenable number.

450369089 is a deficient number, since it is larger than the sum of its proper divisors (1).

450369089 is an equidigital number, since it uses as much as digits as its factorization.

450369089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 450369089 is about 21221.9011636564. The cubic root of 450369089 is about 766.5188835714.

The spelling of 450369089 in words is "four hundred fifty million, three hundred sixty-nine thousand, eighty-nine".