449999111 has 4 divisors (see below), whose sum is σ = 450041592. Its totient is φ = 449956632.

The previous prime is 449999101. The next prime is 449999113. The reversal of 449999111 is 111999944.

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 449999111 - 2⁶ = 449999047 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449999113) 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, 9020 + ... + 31326.

It is an arithmetic number, because the mean of its divisors is an integer number (112510398).

Almost surely, 2^449999111 is an apocalyptic number.

449999111 is a deficient number, since it is larger than the sum of its proper divisors (42481).

449999111 is a wasteful number, since it uses less digits than its factorization.

449999111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42480.

The product of its digits is 104976, while the sum is 47.

The square root of 449999111 is about 21213.1824816551. The cubic root of 449999111 is about 766.3089277643.

The spelling of 449999111 in words is "four hundred forty-nine million, nine hundred ninety-nine thousand, one hundred eleven".