450258749 has 2 divisors, whose sum is σ = 450258750. Its totient is φ = 450258748.

The previous prime is 450258737. The next prime is 450258769. The reversal of 450258749 is 947852054.

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., 450203524 + 55225 = 21218^2 + 235^2 .

It is a cyclic number.

It is not a de Polignac number, because 450258749 - 2⁴ = 450258733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (450258769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225129374 + 225129375.

It is an arithmetic number, because the mean of its divisors is an integer number (225129375).

Almost surely, 2^450258749 is an apocalyptic number.

It is an amenable number.

450258749 is a deficient number, since it is larger than the sum of its proper divisors (1).

450258749 is an equidigital number, since it uses as much as digits as its factorization.

450258749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 403200, while the sum is 44.

The square root of 450258749 is about 21219.3013315707. The cubic root of 450258749 is about 766.4562796584.

The spelling of 450258749 in words is "four hundred fifty million, two hundred fifty-eight thousand, seven hundred forty-nine".