2856448 has 40 divisors (see below), whose sum is σ = 6530832. Its totient is φ = 1222656.

The previous prime is 2856431. The next prime is 2856449. The reversal of 2856448 is 8446582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2856449) 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, 3186 + ... + 3982.

2^2856448 is an apocalyptic number.

2856448 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2856448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3265416).

2856448 is an abundant number, since it is smaller than the sum of its proper divisors (3674384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2856448 is an frugal number, since it uses more digits than its factorization.

2856448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822 (or 806 counting only the distinct ones).

The product of its digits is 61440, while the sum is 37.

The square root of 2856448 is about 1690.1029554438. The cubic root of 2856448 is about 141.8868370389.

The spelling of 2856448 in words is "two million, eight hundred fifty-six thousand, four hundred forty-eight".