449850779 has 4 divisors (see below), whose sum is σ = 514115184. Its totient is φ = 385586376.

The previous prime is 449850761. The next prime is 449850833. The reversal of 449850779 is 977058944.

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

It is a de Polignac number, because none of the positive numbers 2^k-449850779 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 449850779.

It is not an unprimeable number, because it can be changed into a prime (449850979) 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, 32132192 + ... + 32132205.

It is an arithmetic number, because the mean of its divisors is an integer number (128528796).

Almost surely, 2^449850779 is an apocalyptic number.

449850779 is a deficient number, since it is larger than the sum of its proper divisors (64264405).

449850779 is an equidigital number, since it uses as much as digits as its factorization.

449850779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64264404.

The product of its (nonzero) digits is 2540160, while the sum is 53.

The square root of 449850779 is about 21209.6859712727. The cubic root of 449850779 is about 766.2247197257.

The spelling of 449850779 in words is "four hundred forty-nine million, eight hundred fifty thousand, seven hundred seventy-nine".