449694457 has 2 divisors, whose sum is σ = 449694458. Its totient is φ = 449694456.

The previous prime is 449694431. The next prime is 449694481. The reversal of 449694457 is 754496944.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 256512256 + 193182201 = 16016^2 + 13899^2 .

It is a cyclic number.

It is not a de Polignac number, because 449694457 - 2¹⁵ = 449661689 is a prime.

It is not a weakly prime, because it can be changed into another prime (449694407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224847228 + 224847229.

It is an arithmetic number, because the mean of its divisors is an integer number (224847229).

Almost surely, 2^449694457 is an apocalyptic number.

It is an amenable number.

449694457 is a deficient number, since it is larger than the sum of its proper divisors (1).

449694457 is an equidigital number, since it uses as much as digits as its factorization.

449694457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4354560, while the sum is 52.

The square root of 449694457 is about 21206.0004951429. Note that the first 3 decimals coincide. The cubic root of 449694457 is about 766.1359557302.

The spelling of 449694457 in words is "four hundred forty-nine million, six hundred ninety-four thousand, four hundred fifty-seven".