2103450 has 48 divisors (see below), whose sum is σ = 5371680. Its totient is φ = 544320.

The previous prime is 2103449. The next prime is 2103473. The reversal of 2103450 is 543012.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 5361 + ... + 5739.

It is an arithmetic number, because the mean of its divisors is an integer number (111910).

2^2103450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2103450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2685840).

2103450 is an abundant number, since it is smaller than the sum of its proper divisors (3268230).

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

2103450 is a wasteful number, since it uses less digits than its factorization.

2103450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431 (or 426 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 2103450 is about 1450.3275492109. The cubic root of 2103450 is about 128.1280050852.

Adding to 2103450 its reverse (543012), we get a palindrome (2646462).

The spelling of 2103450 in words is "two million, one hundred three thousand, four hundred fifty".