2157848 has 64 divisors (see below), whose sum is σ = 5253120. Its totient is φ = 806400.

The previous prime is 2157839. The next prime is 2157851. The reversal of 2157848 is 8487512.

It is a super-2 number, since 2×2157848² = 9312615982208, which contains 22 as substring.

It is a zygodrome in base 3.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19040 + ... + 19152.

It is an arithmetic number, because the mean of its divisors is an integer number (82080).

2^2157848 is an apocalyptic number.

2157848 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 2157848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2626560).

2157848 is an abundant number, since it is smaller than the sum of its proper divisors (3095272).

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

2157848 is a wasteful number, since it uses less digits than its factorization.

2157848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168 (or 164 counting only the distinct ones).

The product of its digits is 17920, while the sum is 35.

The square root of 2157848 is about 1468.9615379580. The cubic root of 2157848 is about 129.2231380313.

The spelling of 2157848 in words is "two million, one hundred fifty-seven thousand, eight hundred forty-eight".