449674789 has 4 divisors (see below), whose sum is σ = 449729280. Its totient is φ = 449620300.

The previous prime is 449674787. The next prime is 449674793. The reversal of 449674789 is 987476944.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, 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 449674789 - 2¹ = 449674787 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 (449674781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12037 + ... + 32314.

It is an arithmetic number, because the mean of its divisors is an integer number (112432320).

Almost surely, 2^449674789 is an apocalyptic number.

It is an amenable number.

449674789 is a deficient number, since it is larger than the sum of its proper divisors (54491).

449674789 is a wasteful number, since it uses less digits than its factorization.

449674789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54490.

The product of its digits is 12192768, while the sum is 58.

The square root of 449674789 is about 21205.5367534048. The cubic root of 449674789 is about 766.1247862340.

The spelling of 449674789 in words is "four hundred forty-nine million, six hundred seventy-four thousand, seven hundred eighty-nine".