450090049 has 2 divisors, whose sum is σ = 450090050. Its totient is φ = 450090048.

The previous prime is 450090029. The next prime is 450090083. The reversal of 450090049 is 940090054.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 373842225 + 76247824 = 19335^2 + 8732^2 .

It is a cyclic number.

It is not a de Polignac number, because 450090049 - 2¹³ = 450081857 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 450090049.

It is not a weakly prime, because it can be changed into another prime (450090029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225045024 + 225045025.

It is an arithmetic number, because the mean of its divisors is an integer number (225045025).

Almost surely, 2^450090049 is an apocalyptic number.

It is an amenable number.

450090049 is a deficient number, since it is larger than the sum of its proper divisors (1).

450090049 is an equidigital number, since it uses as much as digits as its factorization.

450090049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 450090049 is about 21215.3258047101. The cubic root of 450090049 is about 766.3605440941.

It can be divided in two parts, 4500 and 90049, that added together give a palindrome (94549).

The spelling of 450090049 in words is "four hundred fifty million, ninety thousand, forty-nine".