2154824 has 48 divisors (see below), whose sum is σ = 4924800. Its totient is φ = 879648.

The previous prime is 2154811. The next prime is 2154829. The reversal of 2154824 is 4284512.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2154793 and 2154802.

It is not an unprimeable number, because it can be changed into a prime (2154829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8897 + ... + 9135.

It is an arithmetic number, because the mean of its divisors is an integer number (102600).

2^2154824 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 2154824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2462400).

2154824 is an abundant number, since it is smaller than the sum of its proper divisors (2769976).

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

2154824 is a wasteful number, since it uses less digits than its factorization.

2154824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282 (or 271 counting only the distinct ones).

The product of its digits is 2560, while the sum is 26.

The square root of 2154824 is about 1467.9318785284. The cubic root of 2154824 is about 129.1627455394.

It can be divided in two parts, 21 and 54824, that added together give a palindrome (54845).

The spelling of 2154824 in words is "two million, one hundred fifty-four thousand, eight hundred twenty-four".