2120544 has 72 divisors (see below), whose sum is σ = 6224400. Its totient is φ = 684288.

The previous prime is 2120537. The next prime is 2120549. The reversal of 2120544 is 4450212.

2120544 is a `hidden beast` number, since 2 + 120 + 544 = 666.

2120544 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120549) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10557 + ... + 10755.

It is an arithmetic number, because the mean of its divisors is an integer number (86450).

2^2120544 is an apocalyptic number.

2120544 is a gapful number since it is divisible by the number (24) 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 2120544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3112200).

2120544 is an abundant number, since it is smaller than the sum of its proper divisors (4103856).

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

2120544 is a wasteful number, since it uses less digits than its factorization.

2120544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 241 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 2120544 is about 1456.2087762405. The cubic root of 2120544 is about 128.4741528759.

Adding to 2120544 its reverse (4450212), we get a palindrome (6570756).

The spelling of 2120544 in words is "two million, one hundred twenty thousand, five hundred forty-four".