449362889 has 2 divisors, whose sum is σ = 449362890. Its totient is φ = 449362888.

The previous prime is 449362883. The next prime is 449362897. The reversal of 449362889 is 988263944.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 371217289 + 78145600 = 19267^2 + 8840^2 .

It is a cyclic number.

It is not a de Polignac number, because 449362889 - 2⁸ = 449362633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 449362889.

It is not a weakly prime, because it can be changed into another prime (449362883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224681444 + 224681445.

It is an arithmetic number, because the mean of its divisors is an integer number (224681445).

Almost surely, 2^449362889 is an apocalyptic number.

It is an amenable number.

449362889 is a deficient number, since it is larger than the sum of its proper divisors (1).

449362889 is an equidigital number, since it uses as much as digits as its factorization.

449362889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2985984, while the sum is 53.

The square root of 449362889 is about 21198.1812663257. The cubic root of 449362889 is about 765.9476140530.

The spelling of 449362889 in words is "four hundred forty-nine million, three hundred sixty-two thousand, eight hundred eighty-nine".