449694431 has 2 divisors, whose sum is σ = 449694432. Its totient is φ = 449694430.

The previous prime is 449694407. The next prime is 449694457. The reversal of 449694431 is 134496944.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-449694431 is a prime.

It is a super-2 number, since 2×449694431² = 404450162544827522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (449694481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224847215 + 224847216.

It is an arithmetic number, because the mean of its divisors is an integer number (224847216).

Almost surely, 2^449694431 is an apocalyptic number.

449694431 is a deficient number, since it is larger than the sum of its proper divisors (1).

449694431 is an equidigital number, since it uses as much as digits as its factorization.

449694431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 44.

The square root of 449694431 is about 21205.9998821088. Note that the first 3 decimals coincide. The cubic root of 449694431 is about 766.1359409650.

The spelling of 449694431 in words is "four hundred forty-nine million, six hundred ninety-four thousand, four hundred thirty-one".