2100650 has 12 divisors (see below), whose sum is σ = 3907302. Its totient is φ = 840240.

The previous prime is 2100649. The next prime is 2100661. The reversal of 2100650 is 560012.

It can be written as a sum of positive squares in 3 ways, for example, as 1776889 + 323761 = 1333^2 + 569^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20957 + ... + 21056.

2^2100650 is an apocalyptic number.

2100650 is a deficient number, since it is larger than the sum of its proper divisors (1806652).

2100650 is a wasteful number, since it uses less digits than its factorization.

2100650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42025 (or 42020 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 2100650 is about 1449.3619285741. The cubic root of 2100650 is about 128.0711274605.

Adding to 2100650 its reverse (560012), we get a palindrome (2660662).

The spelling of 2100650 in words is "two million, one hundred thousand, six hundred fifty".