2105370 has 48 divisors (see below), whose sum is σ = 5545800. Its totient is φ = 554112.

The previous prime is 2105359. The next prime is 2105377. The reversal of 2105370 is 735012.

It can be written as a sum of positive squares in 4 ways, for example, as 1046529 + 1058841 = 1023^2 + 1029^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2105377) 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 23 ways as a sum of consecutive naturals, for example, 13332 + ... + 13488.

2^2105370 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2105370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2772900).

2105370 is an abundant number, since it is smaller than the sum of its proper divisors (3440430).

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

2105370 is a wasteful number, since it uses less digits than its factorization.

2105370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 2105370 is about 1450.9893176726. The cubic root of 2105370 is about 128.1669777186.

The spelling of 2105370 in words is "two million, one hundred five thousand, three hundred seventy".