450090029 has 2 divisors, whose sum is σ = 450090030. Its totient is φ = 450090028.

The previous prime is 450090007. The next prime is 450090049. The reversal of 450090029 is 920090054.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 225150025 + 224940004 = 15005^2 + 14998^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-450090029 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 450089983 and 450090010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (450090049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225045014 + 225045015.

It is an arithmetic number, because the mean of its divisors is an integer number (225045015).

Almost surely, 2^450090029 is an apocalyptic number.

It is an amenable number.

450090029 is a deficient number, since it is larger than the sum of its proper divisors (1).

450090029 is an equidigital number, since it uses as much as digits as its factorization.

450090029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 450090029 is about 21215.3253333528. The cubic root of 450090029 is about 766.3605327429.

The spelling of 450090029 in words is "four hundred fifty million, ninety thousand, twenty-nine".