2857248 has 48 divisors (see below), whose sum is σ = 8336160. Its totient is φ = 952128.

The previous prime is 2857247. The next prime is 2857259. The reversal of 2857248 is 8427582.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×2857248² = 16327732267008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (2857247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 790 + ... + 2517.

It is an arithmetic number, because the mean of its divisors is an integer number (173670).

2^2857248 is an apocalyptic number.

It is an amenable number.

2857248 is an abundant number, since it is smaller than the sum of its proper divisors (5478912).

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

2857248 is a wasteful number, since it uses less digits than its factorization.

2857248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3326 (or 3312 counting only the distinct ones).

The product of its digits is 35840, while the sum is 36.

The square root of 2857248 is about 1690.3396108475. The cubic root of 2857248 is about 141.9000817953.

The spelling of 2857248 in words is "two million, eight hundred fifty-seven thousand, two hundred forty-eight".