428096449 has 4 divisors (see below), whose sum is σ = 467014320. Its totient is φ = 389178580.

The previous prime is 428096443. The next prime is 428096477. The reversal of 428096449 is 944690824.

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.

It is a cyclic number.

It is not a de Polignac number, because 428096449 - 2³ = 428096441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 428096399 and 428096408.

It is not an unprimeable number, because it can be changed into a prime (428096441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19458919 + ... + 19458940.

It is an arithmetic number, because the mean of its divisors is an integer number (116753580).

Almost surely, 2^428096449 is an apocalyptic number.

It is an amenable number.

428096449 is a deficient number, since it is larger than the sum of its proper divisors (38917871).

428096449 is a wasteful number, since it uses less digits than its factorization.

428096449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38917870.

The product of its (nonzero) digits is 497664, while the sum is 46.

The square root of 428096449 is about 20690.4917534601. The cubic root of 428096449 is about 753.6688084548.

The spelling of 428096449 in words is "four hundred twenty-eight million, ninety-six thousand, four hundred forty-nine".