449963447 has 4 divisors (see below), whose sum is σ = 450009960. Its totient is φ = 449916936.

The previous prime is 449963407. The next prime is 449963489. The reversal of 449963447 is 744369944.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 449963447 - 2¹⁸ = 449701303 is a prime.

It is a super-2 number, since 2×449963447² = 404934207272243618, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 449963395 and 449963404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449963407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2672 + ... + 30117.

It is an arithmetic number, because the mean of its divisors is an integer number (112502490).

Almost surely, 2^449963447 is an apocalyptic number.

449963447 is a deficient number, since it is larger than the sum of its proper divisors (46513).

449963447 is a wasteful number, since it uses less digits than its factorization.

449963447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46512.

The product of its digits is 2612736, while the sum is 50.

The square root of 449963447 is about 21212.3418556274. The cubic root of 449963447 is about 766.2886830105.

The spelling of 449963447 in words is "four hundred forty-nine million, nine hundred sixty-three thousand, four hundred forty-seven".