2100356 has 12 divisors (see below), whose sum is σ = 3726492. Its totient is φ = 1035648.

The previous prime is 2100353. The next prime is 2100377. The reversal of 2100356 is 6530012.

It can be written as a sum of positive squares in 2 ways, for example, as 577600 + 1522756 = 760^2 + 1234^2 .

It is a super-2 number, since 2×2100356² = 8822990653472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2100353) 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, 3305 + ... + 3888.

It is an arithmetic number, because the mean of its divisors is an integer number (310541).

2^2100356 is an apocalyptic number.

It is an amenable number.

2100356 is a deficient number, since it is larger than the sum of its proper divisors (1626136).

2100356 is a wasteful number, since it uses less digits than its factorization.

2100356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7270 (or 7268 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 2100356 is about 1449.2605010832. The cubic root of 2100356 is about 128.0651523785.

Adding to 2100356 its reverse (6530012), we get a palindrome (8630368).

The spelling of 2100356 in words is "two million, one hundred thousand, three hundred fifty-six".