2158824 has 32 divisors (see below), whose sum is σ = 5433120. Its totient is φ = 714816.

The previous prime is 2158823. The next prime is 2158831. The reversal of 2158824 is 4288512.

It is a junction number, because it is equal to n+sod(n) for n = 2158791 and 2158800.

It is not an unprimeable number, because it can be changed into a prime (2158823) 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, 6879 + ... + 7185.

It is an arithmetic number, because the mean of its divisors is an integer number (169785).

2^2158824 is an apocalyptic number.

2158824 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2158824 is an abundant number, since it is smaller than the sum of its proper divisors (3274296).

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

2158824 is a wasteful number, since it uses less digits than its factorization.

2158824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609 (or 605 counting only the distinct ones).

The product of its digits is 5120, while the sum is 30.

The square root of 2158824 is about 1469.2937078746. The cubic root of 2158824 is about 129.2426177432.

It can be divided in two parts, 21588 and 24, that added together give a palindrome (21612).

The spelling of 2158824 in words is "two million, one hundred fifty-eight thousand, eight hundred twenty-four".