2148784 has 40 divisors (see below), whose sum is σ = 4709520. Its totient is φ = 940800.

The previous prime is 2148781. The next prime is 2148791. The reversal of 2148784 is 4878412.

It is a d-powerful number, because it can be written as 2²¹ + 1 + 4⁵ + 8 + 7⁵ + 8⁵ + 4⁵ .

It is not an unprimeable number, because it can be changed into a prime (2148781) 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, 4894 + ... + 5314.

It is an arithmetic number, because the mean of its divisors is an integer number (117738).

2^2148784 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 2148784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2354760).

2148784 is an abundant number, since it is smaller than the sum of its proper divisors (2560736).

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

2148784 is a wasteful number, since it uses less digits than its factorization.

2148784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469 (or 463 counting only the distinct ones).

The product of its digits is 14336, while the sum is 34.

The square root of 2148784 is about 1465.8731186566. The cubic root of 2148784 is about 129.0419509815.

It can be divided in two parts, 214 and 8784, that added together give a palindrome (8998).

The spelling of 2148784 in words is "two million, one hundred forty-eight thousand, seven hundred eighty-four".