2100276 has 24 divisors (see below), whose sum is σ = 5445440. Its totient is φ = 700056.

The previous prime is 2100269. The next prime is 2100277. The reversal of 2100276 is 6720012.

It is a happy number.

It is a super-2 number, since 2×2100276² = 8822318552352, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9616 + ... + 9831.

2^2100276 is an apocalyptic number.

It is an amenable number.

2100276 is an abundant number, since it is smaller than the sum of its proper divisors (3345164).

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

2100276 is a wasteful number, since it uses less digits than its factorization.

2100276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19460 (or 19452 counting only the distinct ones).

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

The square root of 2100276 is about 1449.2329005374. The cubic root of 2100276 is about 128.0635264093.

Adding to 2100276 its reverse (6720012), we get a palindrome (8820288).

The spelling of 2100276 in words is "two million, one hundred thousand, two hundred seventy-six".