449502637 has 2 divisors, whose sum is σ = 449502638. Its totient is φ = 449502636.

The previous prime is 449502611. The next prime is 449502659. The reversal of 449502637 is 736205944.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 393387556 + 56115081 = 19834^2 + 7491^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-449502637 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 449502637.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (449502667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224751318 + 224751319.

It is an arithmetic number, because the mean of its divisors is an integer number (224751319).

Almost surely, 2^449502637 is an apocalyptic number.

It is an amenable number.

449502637 is a deficient number, since it is larger than the sum of its proper divisors (1).

449502637 is an equidigital number, since it uses as much as digits as its factorization.

449502637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 449502637 is about 21201.4772362682. The cubic root of 449502637 is about 766.0270068671.

The spelling of 449502637 in words is "four hundred forty-nine million, five hundred two thousand, six hundred thirty-seven".