2148840 has 96 divisors (see below), whose sum is σ = 7188480. Its totient is φ = 556416.

The previous prime is 2148803. The next prime is 2148857. The reversal of 2148840 is 488412.

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16857 + ... + 16983.

It is an arithmetic number, because the mean of its divisors is an integer number (74880).

2^2148840 is an apocalyptic number.

2148840 is a gapful number since it is divisible by the number (20) 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 2148840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3594240).

2148840 is an abundant number, since it is smaller than the sum of its proper divisors (5039640).

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

2148840 is a wasteful number, since it uses less digits than its factorization.

2148840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 2148840 is about 1465.8922197761. The cubic root of 2148840 is about 129.0430719700.

It can be divided in two parts, 21488 and 40, that added together give a triangular number (21528 = T₂₀₇).

The spelling of 2148840 in words is "two million, one hundred forty-eight thousand, eight hundred forty".