4256449 has 4 divisors (see below), whose sum is σ = 4441536. Its totient is φ = 4071364.

The previous prime is 4256431. The next prime is 4256459. The reversal of 4256449 is 9446524.

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 4256449 - 2¹⁹ = 3732161 is a prime.

It is a Duffinian number.

4256449 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4256429) 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, 92509 + ... + 92554.

It is an arithmetic number, because the mean of its divisors is an integer number (1110384).

Almost surely, 2^4256449 is an apocalyptic number.

It is an amenable number.

4256449 is a deficient number, since it is larger than the sum of its proper divisors (185087).

4256449 is a wasteful number, since it uses less digits than its factorization.

4256449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185086.

The product of its digits is 34560, while the sum is 34.

The square root of 4256449 is about 2063.1163321539. The cubic root of 4256449 is about 162.0624790757.

The spelling of 4256449 in words is "four million, two hundred fifty-six thousand, four hundred forty-nine".