450644039 has 2 divisors, whose sum is σ = 450644040. Its totient is φ = 450644038.

The previous prime is 450644011. The next prime is 450644059. The reversal of 450644039 is 930446054.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-450644039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (450644059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225322019 + 225322020.

It is an arithmetic number, because the mean of its divisors is an integer number (225322020).

Almost surely, 2^450644039 is an apocalyptic number.

450644039 is a deficient number, since it is larger than the sum of its proper divisors (1).

450644039 is an equidigital number, since it uses as much as digits as its factorization.

450644039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 450644039 is about 21228.3781528406. The cubic root of 450644039 is about 766.6748382452.

The spelling of 450644039 in words is "four hundred fifty million, six hundred forty-four thousand, thirty-nine".