2100544 has 28 divisors (see below), whose sum is σ = 4352544. Its totient is φ = 1003904.

The previous prime is 2100541. The next prime is 2100551. The reversal of 2100544 is 4450012.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 759 + ... + 2185.

It is an arithmetic number, because the mean of its divisors is an integer number (155448).

2^2100544 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 2100544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2176272).

2100544 is an abundant number, since it is smaller than the sum of its proper divisors (2252000).

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

2100544 is a wasteful number, since it uses less digits than its factorization.

2100544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1462 (or 1452 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 2100544 is about 1449.3253602970. The cubic root of 2100544 is about 128.0689732435.

Adding to 2100544 its reverse (4450012), we get a palindrome (6550556).

The spelling of 2100544 in words is "two million, one hundred thousand, five hundred forty-four".