2100726 has 12 divisors (see below), whose sum is σ = 4551612. Its totient is φ = 700236.

The previous prime is 2100719. The next prime is 2100727. The reversal of 2100726 is 6270012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 116707 = 2100726 / (2 + 1 + 0 + 0 + 7 + 2 + 6).

It is a junction number, because it is equal to n+sod(n) for n = 2100699 and 2100708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100727) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58336 + ... + 58371.

It is an arithmetic number, because the mean of its divisors is an integer number (379301).

2^2100726 is an apocalyptic number.

2100726 is an abundant number, since it is smaller than the sum of its proper divisors (2450886).

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

2100726 is a wasteful number, since it uses less digits than its factorization.

2100726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116715 (or 116712 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 2100726 is about 1449.3881467709. The cubic root of 2100726 is about 128.0726719489.

Adding to 2100726 its reverse (6270012), we get a palindrome (8370738).

The spelling of 2100726 in words is "two million, one hundred thousand, seven hundred twenty-six".