2141856 has 96 divisors (see below), whose sum is σ = 6511680. Its totient is φ = 684288.

The previous prime is 2141849. The next prime is 2141863. The reversal of 2141856 is 6581412.

It is an interprime number because it is at equal distance from previous prime (2141849) and next prime (2141863).

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an alternating number because its digits alternate between even and odd.

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, 31935 + ... + 32001.

It is an arithmetic number, because the mean of its divisors is an integer number (67830).

2^2141856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2141856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3255840).

2141856 is an abundant number, since it is smaller than the sum of its proper divisors (4369824).

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

2141856 is a wasteful number, since it uses less digits than its factorization.

2141856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123 (or 109 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 2141856 is about 1463.5081140875. The cubic root of 2141856 is about 128.9031181718.

The spelling of 2141856 in words is "two million, one hundred forty-one thousand, eight hundred fifty-six".