449912149 has 4 divisors (see below), whose sum is σ = 457287820. Its totient is φ = 442536480.

The previous prime is 449912117. The next prime is 449912159. The reversal of 449912149 is 941219944.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 152349649 + 297562500 = 12343^2 + 17250^2 .

It is a cyclic number.

It is not a de Polignac number, because 449912149 - 2⁵ = 449912117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449912159) 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, 3687744 + ... + 3687865.

It is an arithmetic number, because the mean of its divisors is an integer number (114321955).

Almost surely, 2^449912149 is an apocalyptic number.

It is an amenable number.

449912149 is a deficient number, since it is larger than the sum of its proper divisors (7375671).

449912149 is an equidigital number, since it uses as much as digits as its factorization.

449912149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7375670.

The product of its digits is 93312, while the sum is 43.

The square root of 449912149 is about 21211.1326665975. The cubic root of 449912149 is about 766.2595617037.

The spelling of 449912149 in words is "four hundred forty-nine million, nine hundred twelve thousand, one hundred forty-nine".