2857344 has 64 divisors (see below), whose sum is σ = 8682240. Its totient is φ = 815616.

The previous prime is 2857339. The next prime is 2857357. The reversal of 2857344 is 4437582.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2157 + ... + 3219.

It is an arithmetic number, because the mean of its divisors is an integer number (135660).

2^2857344 is an apocalyptic number.

2857344 is a gapful number since it is divisible by the number (24) 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 2857344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4341120).

2857344 is an abundant number, since it is smaller than the sum of its proper divisors (5824896).

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

2857344 is a wasteful number, since it uses less digits than its factorization.

2857344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087 (or 1075 counting only the distinct ones).

The product of its digits is 26880, while the sum is 33.

The square root of 2857344 is about 1690.3680072694. The cubic root of 2857344 is about 141.9016710000.

The spelling of 2857344 in words is "two million, eight hundred fifty-seven thousand, three hundred forty-four".