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449999 = 1123719
BaseRepresentation
bin1101101110111001111
3211212021122
41231313033
5103344444
613351155
73552644
oct1556717
9755248
10449999
11288100
121984bb
13129a94
14b9dcb
158d4ee
hex6ddcf

449999 has 6 divisors (see below), whose sum is σ = 494760. Its totient is φ = 408980.

The previous prime is 449989. The next prime is 450001. The reversal of 449999 is 999944.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-449999 is a prime.

It is a Duffinian number.

449999 is a modest number, since divided by 999 gives 449 as remainder.

It is a plaindrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 449999.

It is not an unprimeable number, because it can be changed into a prime (449929) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1739 + ... + 1980.

It is an arithmetic number, because the mean of its divisors is an integer number (82460).

2449999 is an apocalyptic number.

449999 is a deficient number, since it is larger than the sum of its proper divisors (44761).

449999 is a wasteful number, since it uses less digits than its factorization.

449999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3741 (or 3730 counting only the distinct ones).

The product of its digits is 104976, while the sum is 44.

The square root of 449999 is about 670.8196478935. The cubic root of 449999 is about 76.6308864757.

Subtracting 449999 from its reverse (999944), we obtain a palindrome (549945).

The spelling of 449999 in words is "four hundred forty-nine thousand, nine hundred ninety-nine".

Divisors: 1 11 121 3719 40909 449999