2100450 has 96 divisors (see below), whose sum is σ = 6071040. Its totient is φ = 475200.

The previous prime is 2100409. The next prime is 2100451. The reversal of 2100450 is 540012.

2100450 = 143² + 144² + ... + 209².

It is not an unprimeable number, because it can be changed into a prime (2100451) 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 47 ways as a sum of consecutive naturals, for example, 31317 + ... + 31383.

It is an arithmetic number, because the mean of its divisors is an integer number (63240).

2^2100450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2100450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3035520).

2100450 is an abundant number, since it is smaller than the sum of its proper divisors (3970590).

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

2100450 is a wasteful number, since it uses less digits than its factorization.

2100450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 2100450 is about 1449.2929310529. The cubic root of 2100450 is about 128.0670628395.

Adding to 2100450 its reverse (540012), we get a palindrome (2640462).

The spelling of 2100450 in words is "two million, one hundred thousand, four hundred fifty".